Pub Date : 2020-06-05DOI: 10.23805/JO.2020.12.02.18
D. Dudek, E. Reichmann-Warmusz, G. Kurtzman, L. Mahesh
Aim Surgical treatment of odontogenic cysts of the jaws accounts for a significant percentage of dental surgery procedures. Additionally, a wide range of procedures and augmentation materials are used in the reconstruction of these osseous defects. The authors present a study including histology of surgical treatment of odontogenic cysts using a biphasic calcium sulfate composite bone graft. Materials and methods Two groups, study and control, of 30 patients each with odontogenic cyst were treated for radicular cyst removal with reconstructive surgery using a deproteinized bovine bone graft (xenograft). A modified surgical procedure was performed in the control group, with different types of graft placed in the osseous defects. In the study group wound site closure was performed without periosteum cutting to allow stretching of the flap to attempt primary site closure, whereas in the control group primary wound closure was achieved to protect the xenograft material. Results In the study group complete wound healing and suture maintenance was reported in 29 patients (96.6%); in 1 case (3.4%), a postoperative wound dehiscence (I°) occurred on day 5. In the control group no wounds dehiscences were observed in 24 patients (80%), in 4 cases (12%) a wound dehiscence (I°) occurred on day 3 and 5 and in 2 cases (8%), IIo wound dehiscence over 10 mm with secondary inflammatory features were observed which required graft removal. Conclusions The use of the Bond Apatite® preparation proved to be a simple, inexpensive and effective reconstructive treatment of osseous defects after enucleation of odontogenic cysts.
{"title":"The use of grafting material biphasic calcium sulfate for the treatment of osseous defects resulting from radicular cysts. Clinical study and six-month follow up","authors":"D. Dudek, E. Reichmann-Warmusz, G. Kurtzman, L. Mahesh","doi":"10.23805/JO.2020.12.02.18","DOIUrl":"https://doi.org/10.23805/JO.2020.12.02.18","url":null,"abstract":"Aim Surgical treatment of odontogenic cysts of the jaws accounts for a significant percentage of dental surgery procedures. Additionally, a wide range of procedures and augmentation materials are used in the reconstruction of these osseous defects. The authors present a study including histology of surgical treatment of odontogenic cysts using a biphasic calcium sulfate composite bone graft. \u0000Materials and methods Two groups, study and control, of 30 patients each with odontogenic cyst were treated for radicular cyst removal with reconstructive surgery using a deproteinized bovine bone graft (xenograft). A modified surgical procedure was performed in the control group, with different types of graft placed in the osseous defects. In the study group wound site closure was performed without periosteum cutting to allow stretching of the flap to attempt primary site closure, whereas in the control group primary wound closure was achieved to protect the xenograft material. \u0000Results In the study group complete wound healing and suture maintenance was reported in 29 patients (96.6%); in 1 case (3.4%), a postoperative wound dehiscence (I°) occurred on day 5. In the control group no wounds dehiscences were observed in 24 patients (80%), in 4 cases (12%) a wound dehiscence (I°) occurred on day 3 and 5 and in 2 cases (8%), IIo wound dehiscence over 10 mm with secondary inflammatory features were observed which required graft removal. \u0000Conclusions The use of the Bond Apatite® preparation proved to be a simple, inexpensive and effective reconstructive treatment of osseous defects after enucleation of odontogenic cysts.","PeriodicalId":42724,"journal":{"name":"Journal of Osseointegration","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2020-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88926576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-05-25DOI: 10.23805/JO.2020.12.02.21
M. Kobayashi
Aim The purpose of this study is to investigate the enhancement effect of osseointegration of low intensity ultrasound waving for reinforcement of bone- attachment of hydroxyapatite coating implant. Materials and methods In this study, hydroxyapatite specimen were prepared, two kinds of experiments ( simulation test and animal experiment ) were performed. Hydroxyapatite specimen were soaked in the simulated body fluid (SBF) as a simulation test, implanted rabbits iliac crest as in vivo test. After the irradiation of pulsed ultrasound wave for some planned time–periods, the surface of specimens were assessed and compared with non-ultrasound waving specimens ( control group ) by using Scanning Electron Microscope (SEM), Energy Dispersive Spectroscop (EDS) and X-ray diffraction.Results SEM image and EDS showed that richer layer of bone-like hydroxyapatite covered specimens surfaces in ultrasound wave irradiation group as compared with control group. The measurement of mass of specimens also indicated the efficiency of ultrasound waves for hydroxyapatite formation. These results indicated low intensity ultrasound wave might promote the nucleation and crystallization of bone-like apatite on hydroxyapatite surfaces.Conclusion This study suggested that the clinical application of ultrasound waving has a great potential for enhancement of osseointegration of hydroxyapatite dental implant through the activation of bone bonding mechanism on material surface.
{"title":"Enhancement of Osseointegration of the Hydroxyapatite implant by Low intensive Ultrasound wave (LIPUS) Irradiation","authors":"M. Kobayashi","doi":"10.23805/JO.2020.12.02.21","DOIUrl":"https://doi.org/10.23805/JO.2020.12.02.21","url":null,"abstract":"Aim The purpose of this study is to investigate the enhancement effect of osseointegration of low intensity ultrasound waving for reinforcement of bone- attachment of hydroxyapatite coating implant. Materials and methods In this study, hydroxyapatite specimen were prepared, two kinds of experiments ( simulation test and animal experiment ) were performed. Hydroxyapatite specimen were soaked in the simulated body fluid (SBF) as a simulation test, implanted rabbits iliac crest as in vivo test. After the irradiation of pulsed ultrasound wave for some planned time–periods, the surface of specimens were assessed and compared with non-ultrasound waving specimens ( control group ) by using Scanning Electron Microscope (SEM), Energy Dispersive Spectroscop (EDS) and X-ray diffraction.Results SEM image and EDS showed that richer layer of bone-like hydroxyapatite covered specimens surfaces in ultrasound wave irradiation group as compared with control group. The measurement of mass of specimens also indicated the efficiency of ultrasound waves for hydroxyapatite formation. These results indicated low intensity ultrasound wave might promote the nucleation and crystallization of bone-like apatite on hydroxyapatite surfaces.Conclusion This study suggested that the clinical application of ultrasound waving has a great potential for enhancement of osseointegration of hydroxyapatite dental implant through the activation of bone bonding mechanism on material surface.","PeriodicalId":42724,"journal":{"name":"Journal of Osseointegration","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2020-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86893880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-05-04DOI: 10.23805/JO.2020.12.02.17
M. N. Armaou, I. Roussou, S. Kourtis, D. Kalyvas, M. Mastoris, M. Lambropoulou, N. Papadopoulos
Aim The aim of this paper was to classify the signs of the various types of arthritis that are related to the TMJ according to the etiologic factors. TMJ Arthritis classification is presented according to the levels of inflammation, in order to summarize current knowledge about the inflammatory theory, with emphasis on recent research on pathophysiology and radiographic differential diagnosis of TMJ arthritis types: Osteoarthritis (low- inflammatory arthritic condition), results from increased pressure on a particular joint or fragility of the cartilage matrix and represents a destructive process by which the bony articular surfaces of the condyle and fossa become altered. Osteoarthrosis (non-inflammatory arthritic condition) is an adaptive stage, involving morphologic changes of the articular structures, not associated with significant alterations in the mechanical joint function. Altered articular surfaces of the TMJ may be considered as normal adaptive responses to increased loading, rather than pathological degenerative changes. Polyarthritis or polyarticular arthritis (high–inflammatory arthritic conditions), present similar symptoms and clinical findings as osteoarthritis but have different causes. The classic type of high-inflammatory arthritis is rheumatoid arthritis. Conclusion The clinician must be aware of the various systemic conditions that may affect the TMJ and the stomatognathic system as a whole. In this way the proposed dental treatment plan can and should be adjusted to the needs of the patient taking under consideration the manifestations of the disease in the stomatognathic system.
{"title":"Temporomandibular joint arthritis: possible etiologic factors and arthritis classification.","authors":"M. N. Armaou, I. Roussou, S. Kourtis, D. Kalyvas, M. Mastoris, M. Lambropoulou, N. Papadopoulos","doi":"10.23805/JO.2020.12.02.17","DOIUrl":"https://doi.org/10.23805/JO.2020.12.02.17","url":null,"abstract":"Aim The aim of this paper was to classify the signs of the various types of arthritis that are related to the TMJ according to the etiologic factors. \u0000TMJ Arthritis classification is presented according to the levels of inflammation, in order to summarize current knowledge about the inflammatory theory, with emphasis on recent research on pathophysiology and radiographic differential diagnosis of TMJ arthritis types: Osteoarthritis (low- inflammatory arthritic condition), results from increased pressure on a particular joint or fragility of the cartilage matrix and represents a destructive process by which the bony articular surfaces of the condyle and fossa become altered. Osteoarthrosis (non-inflammatory arthritic condition) is an adaptive stage, involving morphologic changes of the articular structures, not associated with significant alterations in the mechanical joint function. Altered articular surfaces of the TMJ may be considered as normal adaptive responses to increased loading, rather than pathological degenerative changes. Polyarthritis or polyarticular arthritis (high–inflammatory arthritic conditions), present similar symptoms and clinical findings as osteoarthritis but have different causes. The classic type of high-inflammatory arthritis is rheumatoid arthritis. \u0000Conclusion The clinician must be aware of the various systemic conditions that may affect the TMJ and the stomatognathic system as a whole. In this way the proposed dental treatment plan can and should be adjusted to the needs of the patient taking under consideration the manifestations of the disease in the stomatognathic system.","PeriodicalId":42724,"journal":{"name":"Journal of Osseointegration","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2020-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73757205","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-04-24DOI: 10.23805/JO.2020.12.02.16
C. Maiorana, P. Poli, F. Signorino, L. Runza, M. Beretta
Background Nowadays, dental implants are frequently used to replace teeth judged as hopeless, even if other treatments should be primarily considered to save them. The reason lies in the fact that extracting a tooth and placing an implant is erroneously considered by many to be easier, faster, and more predictable. This trend of reduced willingness to save compromised teeth is strengthened by the concomitant presence of periapical tooth pathologies, such as radicular cyst. In such cases, affected teeth are condemned prematurely in favour of implant rehabilitations. This case report aims to illustrate a case where compromised teeth were maintained following the enucleation of a radicular cyst, Case report After enucleation of the radicular cyst, retrograde endodontic treatment of the affected teeth was performed. The residual bone defect was then treated with guided bone regeneration to assist and promote healing and improve the prognosis of adjacent teeth. Conclusion The technique proved to be effective and, most importantly, biologically friendly.
{"title":"Are dental implants the first option in case of severely compromised teeth associated with radicular cyst? A critical case report","authors":"C. Maiorana, P. Poli, F. Signorino, L. Runza, M. Beretta","doi":"10.23805/JO.2020.12.02.16","DOIUrl":"https://doi.org/10.23805/JO.2020.12.02.16","url":null,"abstract":"Background Nowadays, dental implants are frequently used to replace teeth judged as hopeless, even if other treatments should be primarily considered to save them. The reason lies in the fact that extracting a tooth and placing an implant is erroneously considered by many to be easier, faster, and more predictable. This trend of reduced willingness to save compromised teeth is strengthened by the concomitant presence of periapical tooth pathologies, such as radicular cyst. In such cases, affected teeth are condemned prematurely in favour of implant rehabilitations. This case report aims to illustrate a case where compromised teeth were maintained following the enucleation of a radicular cyst, \u0000Case report After enucleation of the radicular cyst, retrograde endodontic treatment of the affected teeth was performed. The residual bone defect was then treated with guided bone regeneration to assist and promote healing and improve the prognosis of adjacent teeth. \u0000Conclusion The technique proved to be effective and, most importantly, biologically friendly.","PeriodicalId":42724,"journal":{"name":"Journal of Osseointegration","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2020-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77996130","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-04-21DOI: 10.23805/JO.2020.12.02.15
B. D’Orto, A. Busà, G. Scavella, C. Moreschi, P. Capparé, R. Vinci
Background Cementoblastoma is a benign neoplasia characterized by the formation of cementum-like tissue that connects to the root of a tooth. Various therapeutic approaches have been described in the literature, the most widely used being surgical enucleation of the lesion associated with extraction of the attached tooth. Some authors propose enucleation of the cementoblastoma with attached tooth preservation. Case report This case report describes a 32-year-old Caucasian female with two symmetrical mandibular growths, the largest of which was surgically removed together with the attached tooth, while the other was preserved and steadily monitored. After 15 years of follow-up, no recurrence was observed in the surgical site. The preserved lesion maintained the same dimension and radiographic appearance, although after 3 years the attached tooth required endodontic treatment. With continuous monitoring being the primary prerequisite for this therapeutic choice, preservation of the lesion meant that the patient was able to avoid invasive surgical procedures. Conclusion Our results agree with the theory which describes cementoblastoma as a self-limiting lesion. However, its monitoring is crucial whatever the therapeutic choice might be.
{"title":"Treatment options in cementoblastoma","authors":"B. D’Orto, A. Busà, G. Scavella, C. Moreschi, P. Capparé, R. Vinci","doi":"10.23805/JO.2020.12.02.15","DOIUrl":"https://doi.org/10.23805/JO.2020.12.02.15","url":null,"abstract":"Background Cementoblastoma is a benign neoplasia characterized by the formation of cementum-like tissue that connects to the root of a tooth. Various therapeutic approaches have been described in the literature, the most widely used being surgical enucleation of the lesion associated with extraction of the attached tooth. Some authors propose enucleation of the cementoblastoma with attached tooth preservation. \u0000Case report This case report describes a 32-year-old Caucasian female with two symmetrical mandibular growths, the largest of which was surgically removed together with the attached tooth, while the other was preserved and steadily monitored. After 15 years of follow-up, no recurrence was observed in the surgical site. The preserved lesion maintained the same dimension and radiographic appearance, although after 3 years the attached tooth required endodontic treatment. With continuous monitoring being the primary prerequisite for this therapeutic choice, preservation of the lesion meant that the patient was able to avoid invasive surgical procedures. \u0000Conclusion Our results agree with the theory which describes cementoblastoma as a self-limiting lesion. However, its monitoring is crucial whatever the therapeutic choice might be.","PeriodicalId":42724,"journal":{"name":"Journal of Osseointegration","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2020-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84293851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-04-17DOI: 10.23805/JO.2020.12.02.14
T. Alves, R. Sobrosa, C. Selaimen, M. L. Palmeiro, R. M. H. Segundo, R. Shinkai
ABSTRACT Background Both cleft lip and palate (CLP) and ectodermal dysplasia (ED) are congenital conditions that hamper conventional prosthetic rehabilitation. CLP adult patients usually have sequelae and atrophy of the maxilla. In addition, dental malformation and positioning due to ED often limit the prosthetic alternatives for oral rehabilitation. Case report This clinical report describes a challenging case of a patient with combination of CLP and ED, who was treated with dental implants and ceramic fixed prostheses, according to the patient’s desire to have a pleasant smile and the comfort of fixed dentures. Conclusion This report shows that ceramic implant-supported fixed prostheses are predictably safe when sufficient alveolar bone is present in a patient with both CLP and ED, thus restoring aesthetics and function.
{"title":"Ceramic implant-supported fixed prostheses in a patient with ectodermal dysplasia and cleft lip and palate: a case report:","authors":"T. Alves, R. Sobrosa, C. Selaimen, M. L. Palmeiro, R. M. H. Segundo, R. Shinkai","doi":"10.23805/JO.2020.12.02.14","DOIUrl":"https://doi.org/10.23805/JO.2020.12.02.14","url":null,"abstract":"ABSTRACT \u0000Background Both cleft lip and palate (CLP) and ectodermal dysplasia (ED) are congenital conditions that hamper conventional prosthetic rehabilitation. CLP adult patients usually have sequelae and atrophy of the maxilla. In addition, dental malformation and positioning due to ED often limit the prosthetic alternatives for oral rehabilitation. \u0000Case report This clinical report describes a challenging case of a patient with combination of CLP and ED, who was treated with dental implants and ceramic fixed prostheses, according to the patient’s desire to have a pleasant smile and the comfort of fixed dentures. \u0000Conclusion This report shows that ceramic implant-supported fixed prostheses are predictably safe when sufficient alveolar bone is present in a patient with both CLP and ED, thus restoring aesthetics and function.","PeriodicalId":42724,"journal":{"name":"Journal of Osseointegration","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2020-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82149588","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-04-16DOI: 10.23805/JO.2020.12.02.13
M. Valente, A. C. Faria, R. Ribeiro, S. S. Rocha
Aim The aim of this study was to evaluate the effects of internal torque at external hex implants and cyclic loading in the abutment screw loosening. Materials and methods Twenty external hex implants associated with estheticone abutments were divided into two groups: ten conventional, and ten internal torque. Torque loss were evaluated with digital torquemeter before and after 74,000 cycles of cyclic loading at 4.4 Hz frequency. One sample of implant/abutment assembly of each group was analyzed by scanning electron microscope. The data were analyzed by linear mixed model with a significance level of 5%. Results All abutments presented torque loss. Prior to cycling loading, torque loss was 31.51% for conventional implants and 28.14% for internal torque ones. After cyclic loading, torque loss increased significantly for both conventional (59.27%, p=0.002) and internal torque (62.22%, p<0.05) implants sets. There was no significant difference between the implants before (p=0.742) and after (p=0.805) cyclic loading. Conclusion Changes in external hexagon implant for internal torque connection did not interfere with abutment screw loosening.
{"title":"Effect of changes in implants and cyclic loading in the abutment screw loosening.","authors":"M. Valente, A. C. Faria, R. Ribeiro, S. S. Rocha","doi":"10.23805/JO.2020.12.02.13","DOIUrl":"https://doi.org/10.23805/JO.2020.12.02.13","url":null,"abstract":"Aim The aim of this study was to evaluate the effects of internal torque at external hex implants and cyclic loading in the abutment screw loosening. \u0000Materials and methods Twenty external hex implants associated with estheticone abutments were divided into two groups: ten conventional, and ten internal torque. Torque loss were evaluated with digital torquemeter before and after 74,000 cycles of cyclic loading at 4.4 Hz frequency. One sample of implant/abutment assembly of each group was analyzed by scanning electron microscope. The data were analyzed by linear mixed model with a significance level of 5%. \u0000Results All abutments presented torque loss. Prior to cycling loading, torque loss was 31.51% for conventional implants and 28.14% for internal torque ones. After cyclic loading, torque loss increased significantly for both conventional (59.27%, p=0.002) and internal torque (62.22%, p<0.05) implants sets. There was no significant difference between the implants before (p=0.742) and after (p=0.805) cyclic loading. \u0000Conclusion Changes in external hexagon implant for internal torque connection did not interfere with abutment screw loosening.","PeriodicalId":42724,"journal":{"name":"Journal of Osseointegration","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2020-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84244859","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-04-15DOI: 10.23805/JO.2020.12.01.11
Valentina Spicciarelli, C. Marruganti, M. Viviano, N. Baldini, G. Franciosi, Mario Tortoriello, S. Grandini
Aim Since the outbreak of the Novel Human Coronavirus epidemic, researchers around the world focused their efforts on tackling this global emergency. Research labs are joining forces to find a therapy and a preventive vaccine. Preventive and extraordinary safety measures are crucial to reduce the spread of SARS-CoV-2 (Severe Acute Respiratory Syndrome Coronavirus-2) among Health-Care Professionals (HCP). HCP performing or assisting aerosol-generating procedures are classified as “very high exposure risk” workers. New findings suggest that saliva delivered through cough, droplets released through normal breathing and oral mucosa represents a vector of SARS-CoV-2 transmission. Consequently, viruses can be easily vehiculated by most of dental procedures and it is essential for dental offices to change the operating modes. The present narrative review aimed to gather evidence in order to propose operative guidelines to reduce the risk of SARS-CoV-2 transmission in the dental offices. Emphasis was also given to unresolved questions about COVID-19 (Coronavirus Disease 2019) diagnostics and future directions to improve the preventive and safety measures in daily dental practice. Results Operative guidelines aimed to reduce the risk of transmission in the dental office are drawn and described. Conclusion A rapid and reliable diagnostic test detecting COVID-19 positive patients upon arrival at the dental office could allow dental HCP to work in “semi-ordinary” conditions; infected or suspected patients would be postponed or treated only in case of a real emergency employing high-level PPE and extraordinary preventive strategies.
{"title":"Prevention and safety in the dental office after Novel Human Coronavirus outbreak: Unresolved questions and future directions","authors":"Valentina Spicciarelli, C. Marruganti, M. Viviano, N. Baldini, G. Franciosi, Mario Tortoriello, S. Grandini","doi":"10.23805/JO.2020.12.01.11","DOIUrl":"https://doi.org/10.23805/JO.2020.12.01.11","url":null,"abstract":"Aim Since the outbreak of the Novel Human Coronavirus epidemic, researchers around the world focused their efforts on tackling this global emergency. Research labs are joining forces to find a therapy and a preventive vaccine. Preventive and extraordinary safety measures are crucial to reduce the spread of SARS-CoV-2 (Severe Acute Respiratory Syndrome Coronavirus-2) among Health-Care Professionals (HCP). HCP performing or assisting aerosol-generating procedures are classified as “very high exposure risk” workers. New findings suggest that saliva delivered through cough, droplets released through normal breathing and oral mucosa represents a vector of SARS-CoV-2 transmission. Consequently, viruses can be easily vehiculated by most of dental procedures and it is essential for dental offices to change the operating modes. The present narrative review aimed to gather evidence in order to propose operative guidelines to reduce the risk of SARS-CoV-2 transmission in the dental offices. Emphasis was also given to unresolved questions about COVID-19 (Coronavirus Disease 2019) diagnostics and future directions to improve the preventive and safety measures in daily dental practice. \u0000Results Operative guidelines aimed to reduce the risk of transmission in the dental office are drawn and described. \u0000Conclusion A rapid and reliable diagnostic test detecting COVID-19 positive patients upon arrival at the dental office could allow dental HCP to work in “semi-ordinary” conditions; infected or suspected patients would be postponed or treated only in case of a real emergency employing high-level PPE and extraordinary preventive strategies.","PeriodicalId":42724,"journal":{"name":"Journal of Osseointegration","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2020-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91156071","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-04-15DOI: 10.23805/JO.2020.12.01.12
A. Souza, Colombo Lt, H. Hadad, Ana Flávia Piquera Santos, R. Silva, P. Poli, C. Elias, E. Vedovatto, F. A. Souza, P. D. Carvalho
Aim Evaluate the late bone regeneration around implants with machined (MS) and acid modified surfaces followed by the deposition of fluoride ions (AFS) in the tibiae of rabbits. Materials and methods Ti-cp disks and implants underwent the topographic characterization before surgery through scanning electron microscope, x-ray energy dispersive spectrometer (SEM-EDX), roughness average (Ra) and, cross section. Six rabbits received 12 implants in their tibiae. After 12 weeks, euthanasia was performed. The percentage of bone interface contact (BIC%) and neoformed bone area (NBA%) was measured. Data were submitted to the statistical analysis. Results SEM-EDX revealed smooth surface, contaminated with machining residues and peaks of Ti for MS group and AFS group, peaks and valleys with presence of Ti, O, Na, Cl and F. Ra showed statistical difference between AFS (1.34 ± 0.35 µm) than MS (0.4 ± 0.06 µm). Cross section showed a mean thickness of 7.84 ± 3.73 μm for ASF and 1.26 ± 0.55 μm for MS. The mean values of BIC% for AFS were statistically higher than MS. For NBA% there is no statistical difference between grups. Conclusions The surface modified by acid conditioning followed the addition of fluoride ions provides superior osseointegration process, even in the later periods of bone regeneration.
{"title":"Bone regeneration around implants with modified surface by acid conditioning with the fluoride ions deposition","authors":"A. Souza, Colombo Lt, H. Hadad, Ana Flávia Piquera Santos, R. Silva, P. Poli, C. Elias, E. Vedovatto, F. A. Souza, P. D. Carvalho","doi":"10.23805/JO.2020.12.01.12","DOIUrl":"https://doi.org/10.23805/JO.2020.12.01.12","url":null,"abstract":"Aim Evaluate the late bone regeneration around implants with machined (MS) and acid modified surfaces followed by the deposition of fluoride ions (AFS) in the tibiae of rabbits. \u0000Materials and methods Ti-cp disks and implants underwent the topographic characterization before surgery through scanning electron microscope, x-ray energy dispersive spectrometer (SEM-EDX), roughness average (Ra) and, cross section. Six rabbits received 12 implants in their tibiae. After 12 weeks, euthanasia was performed. The percentage of bone interface contact (BIC%) and neoformed bone area (NBA%) was measured. Data were submitted to the statistical analysis. \u0000Results SEM-EDX revealed smooth surface, contaminated with machining residues and peaks of Ti for MS group and AFS group, peaks and valleys with presence of Ti, O, Na, Cl and F. Ra showed statistical difference between AFS (1.34 ± 0.35 µm) than MS (0.4 ± 0.06 µm). Cross section showed a mean thickness of 7.84 ± 3.73 μm for ASF and 1.26 ± 0.55 μm for MS. The mean values of BIC% for AFS were statistically higher than MS. For NBA% there is no statistical difference between grups. \u0000Conclusions The surface modified by acid conditioning followed the addition of fluoride ions provides superior osseointegration process, even in the later periods of bone regeneration.","PeriodicalId":42724,"journal":{"name":"Journal of Osseointegration","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2020-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91197908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-03-25DOI: 10.23805/JO.2020.12.01.09
C. Rengo, A. Nappo, G. Pantaleo, G. Spagnuolo, M. Ferrari
Aim The aim of this study was to measure primary and secondary implant stability through the resonance frequency analysis of mandibular implants and to evaluate the influence of implant diameter and length, sex, age and site. Materials and methods Thirty-six healthy patients who had mandibular implants placed were enrolled for the study. A total of 82 OsseoSpeed TX (Astra Tech Implant System – Dentsply Implants; Molndal, Sweden) implants were placed, with different lengths (9, 11 and 13 mm) and diameters (3.5 and 4 mm). All implants were placed according to a conventional two-stage surgical procedure. Implant stability quotients (ISQ) were recorded at implant placement (ISQ1) and 3 months later, at second surgical stage (ISQ2). Statistical analysis was performed to investigate significant differences between implant dimensions, patient sex and age, and implant position (anterior or posterior sites). SIGMAPLOT software was used for statistical analysis (significance =0.05). Results Secondary implant stability was statistically significantly higher compared to initial ISQ values (p<0.05). ISQ2 values were statistically significantly higher than ISQ1 values for 3.5 mm diameter implants, for 13 mm length implants and for implants placed in anterior mandible. Age was not found to influence implant stability. Female patients showed ISQ2 values significantly higher than males. Conclusion Some parameters such as implant dimensions and positions may influence only the secondary implant stability. Male patients have lower secondary implant stability.
{"title":"Influence of implant dimensions and position on primary and secondary stability: a prospective clinical study in the mandible using resonance frequency analysis","authors":"C. Rengo, A. Nappo, G. Pantaleo, G. Spagnuolo, M. Ferrari","doi":"10.23805/JO.2020.12.01.09","DOIUrl":"https://doi.org/10.23805/JO.2020.12.01.09","url":null,"abstract":"Aim The aim of this study was to measure primary and secondary implant stability through the resonance frequency analysis of mandibular implants and to evaluate the influence of implant diameter and length, sex, age and site. \u0000Materials and methods Thirty-six healthy patients who had mandibular implants placed were enrolled for the study. A total of 82 OsseoSpeed TX (Astra Tech Implant System – Dentsply Implants; Molndal, Sweden) implants were placed, with different lengths (9, 11 and 13 mm) and diameters (3.5 and 4 mm). All implants were placed according to a conventional two-stage surgical procedure. Implant stability quotients (ISQ) were recorded at implant placement (ISQ1) and 3 months later, at second surgical stage (ISQ2). Statistical analysis was performed to investigate significant differences between implant dimensions, patient sex and age, and implant position (anterior or posterior sites). SIGMAPLOT software was used for statistical analysis (significance =0.05). \u0000Results Secondary implant stability was statistically significantly higher compared to initial ISQ values (p<0.05). ISQ2 values were statistically significantly higher than ISQ1 values for 3.5 mm diameter implants, for 13 mm length implants and for implants placed in anterior mandible. Age was not found to influence implant stability. Female patients showed ISQ2 values significantly higher than males. \u0000Conclusion Some parameters such as implant dimensions and positions may influence only the secondary implant stability. Male patients have lower secondary implant stability.","PeriodicalId":42724,"journal":{"name":"Journal of Osseointegration","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2020-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76571260","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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