R. Krishnaprabhu, R. Shadamarshan, S. R. Roy Chowdhury
Context: Several materials have been used for maxillary sinus augmentation for subsequent implant-supported prosthetic rehabilitation. No perfect material has been identified for the purpose. Aims: The aim of the study is to clinically and radiographically evaluate the use of Sterile Demineralized bone matrix (Osseograft™) for maxillary sinus augmentation and subsequent implant-supported prosthetic rehabilitation. Subject and Methods: Sinus augmentation and implant placement were carried out in twenty patients with Osseograft™. Using intraoral periapical radiographs, radiographic implant length (rIL), residual bone height at the mesial (mRBH) and residual bone height at the distal (dRBH) aspects of the implant, and height of the graft apically (aGH) were measured. Residual bone height (RBH) = Mean of mRBH and dRBH, implant penetration (IP) =difference between rIL and RBH, Extent of the sinus lift (SL) = sum of IP and aGH were calculated and a qualitative assessment of maturation was performed using the Sinus Grafting Remodeling Index (SGRI). Statistical Analysis Used: Descriptive statistics. Results: The mean residual bone height immediately after surgery was 6.81 mm. The mean IP length was 5.45 mm. The mean aGH was 3.21 mm. The mean extent of the SL was 8.89 mm. At 3 months and 6 months, the mean aGH was 2.68 mm and 2.57 mm. The mean SL at 3 months and 6 months was 7.84 mm and 7.73 mm. The SGRI was 1 in all cases immediately postsurgery; between 1 and 2 at the end of 3 months; 2 in 15 cases and 1 in 4 cases at the end of 6 months. Conclusion: Osseograft™ can be used as an effective material for sinus augmentation with minimal complications and morbidity to the patient.
{"title":"Efficacy of demineralized bone matrix for maxillary sinus lift with implant-retained prosthetic rehabilitation: A prospective evaluation","authors":"R. Krishnaprabhu, R. Shadamarshan, S. R. Roy Chowdhury","doi":"10.4103/jdi.jdi_13_20","DOIUrl":"https://doi.org/10.4103/jdi.jdi_13_20","url":null,"abstract":"Context: Several materials have been used for maxillary sinus augmentation for subsequent implant-supported prosthetic rehabilitation. No perfect material has been identified for the purpose. Aims: The aim of the study is to clinically and radiographically evaluate the use of Sterile Demineralized bone matrix (Osseograft™) for maxillary sinus augmentation and subsequent implant-supported prosthetic rehabilitation. Subject and Methods: Sinus augmentation and implant placement were carried out in twenty patients with Osseograft™. Using intraoral periapical radiographs, radiographic implant length (rIL), residual bone height at the mesial (mRBH) and residual bone height at the distal (dRBH) aspects of the implant, and height of the graft apically (aGH) were measured. Residual bone height (RBH) = Mean of mRBH and dRBH, implant penetration (IP) =difference between rIL and RBH, Extent of the sinus lift (SL) = sum of IP and aGH were calculated and a qualitative assessment of maturation was performed using the Sinus Grafting Remodeling Index (SGRI). Statistical Analysis Used: Descriptive statistics. Results: The mean residual bone height immediately after surgery was 6.81 mm. The mean IP length was 5.45 mm. The mean aGH was 3.21 mm. The mean extent of the SL was 8.89 mm. At 3 months and 6 months, the mean aGH was 2.68 mm and 2.57 mm. The mean SL at 3 months and 6 months was 7.84 mm and 7.73 mm. The SGRI was 1 in all cases immediately postsurgery; between 1 and 2 at the end of 3 months; 2 in 15 cases and 1 in 4 cases at the end of 6 months. Conclusion: Osseograft™ can be used as an effective material for sinus augmentation with minimal complications and morbidity to the patient.","PeriodicalId":212982,"journal":{"name":"Journal of Dental Implants","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133767871","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}
{"title":"COVID-19 and dental health fallout: Time to take the bull by the horn","authors":"S. Shetty","doi":"10.4103/jdi.jdi_9_21","DOIUrl":"https://doi.org/10.4103/jdi.jdi_9_21","url":null,"abstract":"","PeriodicalId":212982,"journal":{"name":"Journal of Dental Implants","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124903619","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}
Karina R Teixeira, J. Mendonca, M. Rosa, R. Huebner, M. Cortés, Marcus L Ferreira
Several therapies for tissue regeneration in implantology have been explored for their ability to enhance bone regeneration such as low-level laser therapy (LLLT), also known as photobiomodulation. This technique has been shown to reduce inflammation and edema, induce analgesia, and promote healing in a range of musculoskeletal pathologies with cost-effective for healing therapy. The endothelial progenitor and hematopoietic stem cells, together with LLLT improving their capacity to induce angiogenesis, recruit other cells to a site of injury and secrete growth factors and cytokines that have a paracrine effect on surrounding cells. A critical review and comprehensively analyze of tissue regeneration associated to newer regenerative techniques as LLLT, platelet derivatives and mesenchymal stem cells (MSCs) at preimplant sites was released. An electronic search in PubMed via Medline and Embase was conducted of publications from the previous 10 years. English language articles related to the subject were found using selected keywords. We summarize the photobiomodulation properties and its relation with platelet derivatives and MSCs and discuss the efficacy of these therapies for tissue repair. The LLLT is well-documented therapy but further research studies relating LLLT to tissue regeneration in periodontics and implantology are needed.
{"title":"Bone regeneration associated with low-level laser therapy in implantology","authors":"Karina R Teixeira, J. Mendonca, M. Rosa, R. Huebner, M. Cortés, Marcus L Ferreira","doi":"10.4103/jdi.jdi_6_20","DOIUrl":"https://doi.org/10.4103/jdi.jdi_6_20","url":null,"abstract":"Several therapies for tissue regeneration in implantology have been explored for their ability to enhance bone regeneration such as low-level laser therapy (LLLT), also known as photobiomodulation. This technique has been shown to reduce inflammation and edema, induce analgesia, and promote healing in a range of musculoskeletal pathologies with cost-effective for healing therapy. The endothelial progenitor and hematopoietic stem cells, together with LLLT improving their capacity to induce angiogenesis, recruit other cells to a site of injury and secrete growth factors and cytokines that have a paracrine effect on surrounding cells. A critical review and comprehensively analyze of tissue regeneration associated to newer regenerative techniques as LLLT, platelet derivatives and mesenchymal stem cells (MSCs) at preimplant sites was released. An electronic search in PubMed via Medline and Embase was conducted of publications from the previous 10 years. English language articles related to the subject were found using selected keywords. We summarize the photobiomodulation properties and its relation with platelet derivatives and MSCs and discuss the efficacy of these therapies for tissue repair. The LLLT is well-documented therapy but further research studies relating LLLT to tissue regeneration in periodontics and implantology are needed.","PeriodicalId":212982,"journal":{"name":"Journal of Dental Implants","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126526200","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}
V. Attargekar, Girish Galagali, E. Reddy, Prakash Nidawani, R. Harsha, Satyanarayana Naik
Background: Tapered implants imitate the natural form of the root. They are known to enhance primary stability by providing pressure on the cortical bone of regions with poor bone qualities and also has a good survival rate as it directs stresses away from the crestal cortical bone while transferring it to the cancellous bone. Purpose: Maxillary anatomic constraints sometimes make it necessary to surgically position implants at angles that are not optimal for prosthetic restorations or by positioning the implant in the area with the greatest available bone, with the intention of correcting the implant alignment at the time of prosthetic restoration. This is made possible, in carefully planned cases with the use of angulated abutments. Materials and Methods: Three tapered implants with triangular, square, and buttress thread designs having a 15° and 25° angulated abutment were created. The implant models were positioned in anterior maxillary bone D2 and D3 and clinical loading conditions simulated. The maximum equivalent von Mises stress values were recorded and analyzed using ANSYS software. Results: The finite element analysis carried out showed less stresses from tapered implant square thread design in D2 and D3 bone with 15° angulated abutment, while buttress thread design performed better in D2 and D3 bone with 25° abutment angulation on axial and nonaxial loading. Conclusion: Bone type is an important factor that affects stress distribution. More stress occurred in D3 bone compared to D2 bone type. Thus, bone type should be carefully considered when choosing the most appropriate implant design.
{"title":"Evaluation of stress distribution in maxillary anterior bone from three different tapered implant thread designs with two angulated abutments: A 3-dimensional finite element analysis study","authors":"V. Attargekar, Girish Galagali, E. Reddy, Prakash Nidawani, R. Harsha, Satyanarayana Naik","doi":"10.4103/jdi.jdi_32_20","DOIUrl":"https://doi.org/10.4103/jdi.jdi_32_20","url":null,"abstract":"Background: Tapered implants imitate the natural form of the root. They are known to enhance primary stability by providing pressure on the cortical bone of regions with poor bone qualities and also has a good survival rate as it directs stresses away from the crestal cortical bone while transferring it to the cancellous bone. Purpose: Maxillary anatomic constraints sometimes make it necessary to surgically position implants at angles that are not optimal for prosthetic restorations or by positioning the implant in the area with the greatest available bone, with the intention of correcting the implant alignment at the time of prosthetic restoration. This is made possible, in carefully planned cases with the use of angulated abutments. Materials and Methods: Three tapered implants with triangular, square, and buttress thread designs having a 15° and 25° angulated abutment were created. The implant models were positioned in anterior maxillary bone D2 and D3 and clinical loading conditions simulated. The maximum equivalent von Mises stress values were recorded and analyzed using ANSYS software. Results: The finite element analysis carried out showed less stresses from tapered implant square thread design in D2 and D3 bone with 15° angulated abutment, while buttress thread design performed better in D2 and D3 bone with 25° abutment angulation on axial and nonaxial loading. Conclusion: Bone type is an important factor that affects stress distribution. More stress occurred in D3 bone compared to D2 bone type. Thus, bone type should be carefully considered when choosing the most appropriate implant design.","PeriodicalId":212982,"journal":{"name":"Journal of Dental Implants","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123564920","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}
Statement of Problem: The importance of implant collar/neck in crestal bone area triggered the need to understand the influence of its design/surface topography on surrounding hard and soft tissues. Purpose: This study analyzed the effect of machined and rough surface of implant collar on bone level at crestal region and surrounding soft tissues in maxillary and mandibular anterior region. Materials and Methods: The clinical study was conducted on 20 participants (15 males and 5 females) based on the inclusion and exclusion parameters. Participants were broadly divided into two groups with 10 dental implants in Group R (implant with rough collar design) and Group M (implant with machined collar design). The participants were evaluated at baseline (within 1 week after implant placement), 3 months, and 6 months for crestal bone level and soft tissue parameters (pink esthetic score [PES]). Results: All implants showed clinically acceptable bone loss at interval of 6 months, i.e., 0.68 and 0.74 on mesial and distal aspect of R group implants, respectively, and 1.15 and 0.83 at mesial and distal aspect of R group implants, respectively. And also, the PES of all implants observed was above the clinical acceptability level, i.e., 6.15 and 6.05 for R and M groups implants, respectively. Conclusion: It can be concluded from the present study that there is no significant difference statistically in bone level at crestal region and soft tissues parameters in two different implant collar designs used in the study although the loss of bone observed was higher in machined group in comparison to rough group of implants and the PES observed was also more in R group in comparison to M group.
{"title":"Randomize clinical trial of the effect of machined and rough surface of implant collar on crestal bone level and surrounding soft tissue","authors":"Anshul Chugh, S. Rani, A. Gupta","doi":"10.4103/jdi.jdi_26_20","DOIUrl":"https://doi.org/10.4103/jdi.jdi_26_20","url":null,"abstract":"Statement of Problem: The importance of implant collar/neck in crestal bone area triggered the need to understand the influence of its design/surface topography on surrounding hard and soft tissues. Purpose: This study analyzed the effect of machined and rough surface of implant collar on bone level at crestal region and surrounding soft tissues in maxillary and mandibular anterior region. Materials and Methods: The clinical study was conducted on 20 participants (15 males and 5 females) based on the inclusion and exclusion parameters. Participants were broadly divided into two groups with 10 dental implants in Group R (implant with rough collar design) and Group M (implant with machined collar design). The participants were evaluated at baseline (within 1 week after implant placement), 3 months, and 6 months for crestal bone level and soft tissue parameters (pink esthetic score [PES]). Results: All implants showed clinically acceptable bone loss at interval of 6 months, i.e., 0.68 and 0.74 on mesial and distal aspect of R group implants, respectively, and 1.15 and 0.83 at mesial and distal aspect of R group implants, respectively. And also, the PES of all implants observed was above the clinical acceptability level, i.e., 6.15 and 6.05 for R and M groups implants, respectively. Conclusion: It can be concluded from the present study that there is no significant difference statistically in bone level at crestal region and soft tissues parameters in two different implant collar designs used in the study although the loss of bone observed was higher in machined group in comparison to rough group of implants and the PES observed was also more in R group in comparison to M group.","PeriodicalId":212982,"journal":{"name":"Journal of Dental Implants","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115521311","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}
S. Khan, G. Issar, Siddharth Bansal, H. Jagadeesh, S. Tyagi
Purpose: The aim of this study was to assess and evaluate the retention of conventional retentive sleeve material versus retention.sil in implant-retained overdentures. Methodology: Custom-designed models of uniform dimensions were made from heat-polymerized polymethyl methacrylate resin. The model had two components which comprised a lower member (matrix) and an upper member (patrix). The lower member (matrix) was embedded with two ADIN implant analogs attachment (Adin Implant System Ltd. Israel) of 3.75 mm × 10 mm with prefabricated ball attachment at an interimplant distance of 20 mm. The upper member was prepared to receive two different retention sleeve materials, conventional retentive/plastic sleeve attachment (Adin Implant System Ltd. Israel), and retention.sil 600 (Bredent medical GmbH and Co. KG). Using a universal testing machine, each of the models was subjected to 100 pulls each to dislodge the upper member from the lower member, and the force values as indicated on the digital indicator were tabulated. Statistical Analysis Used: Statistical analysis comprised Kolmogorov–Smirnov test, Friedman test, Mann–Whitney test, and Wilcoxon signed-rank test. Results: The statistical model revealed that when subjected to vertically directed forces, the conventional retentive/plastic sleeve attachment (Adin Implant System Ltd. Israel) developed higher retentive force as compared to the retention.sil 600 (Bredent medical GmbH and Co. KG). Conclusions: The conventional retentive sleeve material maintains their retentive capacity longer than the retention.sil 600. Further research is required to increase the retentive force in retention.sil material, thereby increasing denture retention and stability.
目的:本研究的目的是评估传统固位套筒材料与固位材料的固位效果。仍然在种植保留覆盖义齿。方法:采用热聚合聚甲基丙烯酸甲酯树脂制作统一尺寸的定制模型。该模型由下成员(矩阵)和上成员(矩阵)组成。下部构件(基质)嵌入两个ADIN植入物类似物附件(ADIN implant System Ltd.)。以色列)3.75 mm × 10 mm，在种植体间距离为20 mm的预制球附着体。上肢准备接受两种不同的固位套筒材料，传统的固位/塑料套筒附件(Adin Implant System Ltd.)。以色列)和保留率。sil600 (Bredent medical GmbH and Co. KG)。使用万能试验机，每个模型都受到100次拉力，每次拉力使上构件从下构件中脱落，并将数字指示器上显示的力值制成表格。统计分析方法:统计分析包括Kolmogorov-Smirnov检验、Friedman检验、Mann-Whitney检验和Wilcoxon sign -rank检验。结果:统计模型显示，当受到垂直方向的力时，传统的固位体/塑料套管附着体(Adin Implant System Ltd.)。以色列的留存力比美国的留存力高。sil600 (Bredent medical GmbH and Co. KG)。结论:常规固位套筒材料比固位套筒材料保持固位能力更长。银600。提高固位力的方法有待进一步研究。Sil材料，从而增加义齿固位和稳定性。
{"title":"A comparative study to evaluate the retention of conventional retention sleeve material versus retention.sil 600 in implant-retained overdentures: In vitro study","authors":"S. Khan, G. Issar, Siddharth Bansal, H. Jagadeesh, S. Tyagi","doi":"10.4103/jdi.jdi_14_20","DOIUrl":"https://doi.org/10.4103/jdi.jdi_14_20","url":null,"abstract":"Purpose: The aim of this study was to assess and evaluate the retention of conventional retentive sleeve material versus retention.sil in implant-retained overdentures. Methodology: Custom-designed models of uniform dimensions were made from heat-polymerized polymethyl methacrylate resin. The model had two components which comprised a lower member (matrix) and an upper member (patrix). The lower member (matrix) was embedded with two ADIN implant analogs attachment (Adin Implant System Ltd. Israel) of 3.75 mm × 10 mm with prefabricated ball attachment at an interimplant distance of 20 mm. The upper member was prepared to receive two different retention sleeve materials, conventional retentive/plastic sleeve attachment (Adin Implant System Ltd. Israel), and retention.sil 600 (Bredent medical GmbH and Co. KG). Using a universal testing machine, each of the models was subjected to 100 pulls each to dislodge the upper member from the lower member, and the force values as indicated on the digital indicator were tabulated. Statistical Analysis Used: Statistical analysis comprised Kolmogorov–Smirnov test, Friedman test, Mann–Whitney test, and Wilcoxon signed-rank test. Results: The statistical model revealed that when subjected to vertically directed forces, the conventional retentive/plastic sleeve attachment (Adin Implant System Ltd. Israel) developed higher retentive force as compared to the retention.sil 600 (Bredent medical GmbH and Co. KG). Conclusions: The conventional retentive sleeve material maintains their retentive capacity longer than the retention.sil 600. Further research is required to increase the retentive force in retention.sil material, thereby increasing denture retention and stability.","PeriodicalId":212982,"journal":{"name":"Journal of Dental Implants","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126008179","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}
D. Daniel, V. Shetty, Jerin Jose, A. Kumar, B. Santosh, S. Saikrrupa
Aim: Immediate placement of an implant into the fresh extraction socket often leaves a space between the implant periphery and the surrounding bone, and the space between the implant and the bone is required to be filled with a biocompatible material such as a graft. This study aimed to compare the efficacy of synthetic bioactive glass allograft and dried freeze bovine bone grafts in the immediate implant site. Materials and Methods: The study comprised a total of thirty individuals in the age group between 16 and 60 years with at least one tooth indicated for extraction. The thirty participants were further divided into two groups. Group A comprised 15 participants who underwent extraction and buccal plate preservation (BPP), followed by immediate implant placement using synthetic allograft material (PerioGlas). Group B comprised 15 participants who underwent extraction and BPP, followed by immediate implant placement using xenograft as the graft material (Bio-Oss). The participants were evaluated both clinically and radiographically for 3 months, 6 months, and 1 year. The level of significance was set at P < 0.05. Results: PerioGlas and Bio-Oss in immediate implant site showed excellent osseointegration around the immediate implant site. However, the difference between the groups was not statistically significant. Conclusion: Both synthetic allograft and bioresorbable xenograft are promising and equally potential in bone formation around the immediate implant site.
{"title":"The efficacy of synthetic allograft and bioresorbable xenograft in immediate implant procedures: A comparative clinical study","authors":"D. Daniel, V. Shetty, Jerin Jose, A. Kumar, B. Santosh, S. Saikrrupa","doi":"10.4103/jdi.jdi_12_20","DOIUrl":"https://doi.org/10.4103/jdi.jdi_12_20","url":null,"abstract":"Aim: Immediate placement of an implant into the fresh extraction socket often leaves a space between the implant periphery and the surrounding bone, and the space between the implant and the bone is required to be filled with a biocompatible material such as a graft. This study aimed to compare the efficacy of synthetic bioactive glass allograft and dried freeze bovine bone grafts in the immediate implant site. Materials and Methods: The study comprised a total of thirty individuals in the age group between 16 and 60 years with at least one tooth indicated for extraction. The thirty participants were further divided into two groups. Group A comprised 15 participants who underwent extraction and buccal plate preservation (BPP), followed by immediate implant placement using synthetic allograft material (PerioGlas). Group B comprised 15 participants who underwent extraction and BPP, followed by immediate implant placement using xenograft as the graft material (Bio-Oss). The participants were evaluated both clinically and radiographically for 3 months, 6 months, and 1 year. The level of significance was set at P < 0.05. Results: PerioGlas and Bio-Oss in immediate implant site showed excellent osseointegration around the immediate implant site. However, the difference between the groups was not statistically significant. Conclusion: Both synthetic allograft and bioresorbable xenograft are promising and equally potential in bone formation around the immediate implant site.","PeriodicalId":212982,"journal":{"name":"Journal of Dental Implants","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115531692","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}
Khloud E Mourad, Radwa Kamal Emera, W. Ahmed, A. Habib
Purpose: This study aimed to compare the effect of two different implants' position (lateral incisors and canine areas) to retain mandibular complete overdenture on the ridge base contact relation after 6 months of overdenture use. Materials and Methods: Ten completely edentulous patients were selected from the Outpatient Clinic of Removable Prosthodontics Department, Faculty of Dentistry, Mansoura University. According to the position of implant placement, patients were randomly classified into two equal groups; Group I where two implants were placed in the lateral incisors' area and Group II where two implants were placed in the canines' area. Positioner attachment was connected to the implant fixture to retain the mandibular implant overdenture. Periodic monitoring of ridge base contact relation was carried out at the time of insertion (T0) and 6 months (T6) later using cone-beam computed tomography (the dual scan technique procedures). Results: There was a statistically insignificant difference between the two groups (lateral incisors' position group and canines' position group) regarding the ridge base contact relationship. Conclusion: Within the limitations of this study (patient number and study period), the ridge base relationship of two implants retained mandibular overdenture is maintained regardless of the implants' position.
{"title":"Lateral incisors versus canine areas for two implant placements used to retain mandibular overdenture: Periodic monitoring of ridge base contact relation","authors":"Khloud E Mourad, Radwa Kamal Emera, W. Ahmed, A. Habib","doi":"10.4103/jdi.jdi_26_19","DOIUrl":"https://doi.org/10.4103/jdi.jdi_26_19","url":null,"abstract":"Purpose: This study aimed to compare the effect of two different implants' position (lateral incisors and canine areas) to retain mandibular complete overdenture on the ridge base contact relation after 6 months of overdenture use. Materials and Methods: Ten completely edentulous patients were selected from the Outpatient Clinic of Removable Prosthodontics Department, Faculty of Dentistry, Mansoura University. According to the position of implant placement, patients were randomly classified into two equal groups; Group I where two implants were placed in the lateral incisors' area and Group II where two implants were placed in the canines' area. Positioner attachment was connected to the implant fixture to retain the mandibular implant overdenture. Periodic monitoring of ridge base contact relation was carried out at the time of insertion (T0) and 6 months (T6) later using cone-beam computed tomography (the dual scan technique procedures). Results: There was a statistically insignificant difference between the two groups (lateral incisors' position group and canines' position group) regarding the ridge base contact relationship. Conclusion: Within the limitations of this study (patient number and study period), the ridge base relationship of two implants retained mandibular overdenture is maintained regardless of the implants' position.","PeriodicalId":212982,"journal":{"name":"Journal of Dental Implants","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123131633","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}
{"title":"Dental implantology: Time to reflect in the shadows of COVID-19","authors":"S. Shetty","doi":"10.4103/jdi.jdi_33_20","DOIUrl":"https://doi.org/10.4103/jdi.jdi_33_20","url":null,"abstract":"","PeriodicalId":212982,"journal":{"name":"Journal of Dental Implants","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124171592","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}
Introduction: To accelerate the process of restoring dental implants, achieving primary stability is of prime importance for effective osseointegration. The various bone substitute materials such as autograft (golden standard), allograft, xenograft, and alloplast are used to improve the stability of an implant and also as an aid in bone formation. The use of bone cements, among the alloplast material, is a relatively new premise in oral implantology. These have been extensively used in orthopedic surgery to secure an implanted prosthesis and to replace or bind bone fragments, resulting from trauma, and to fill cavities. This article aims to review the literature for the use of bone cements in oral implantology and evaluate its prospective use in future to secure dental implants. Materials and Methods: PubMed search was carried out using keywords such as “Bone Cements,” “Oral Implantology,” “Cements Fix Implants with Bone,” and “Cements to Grow Bone.” Of the 1422 articles, 1015 were selected after eliminating the duplicates. After applying the inclusion and exclusion criteria, 383 abstracts were assessed for relevance, of which 17 full-text articles were selected. Five articles were excluded with reasons and 12 eligible articles were included in the systematic review. Results: Eight studies out of the 12 concluded that bone cement could be a viable alternative to allogenic or other graft materials tested. Four articles were inconclusive or showed no significant difference. However, the quality of available evidence was poor as 10 out of the 12 studies were animal trials and 2 were in vitro studies. Due to considerable heterogeneity of data, meta-analysis could not be done. Conclusion: Bone cements can be considered a possible alternative to the existing graft materials. However, further research including controlled trials with human subjects needs to be undertaken to establish its potential.
{"title":"The clinical outcome of bone cement in dental implant insertion – A systematic review","authors":"M. Shah","doi":"10.4103/jdi.jdi_11_20","DOIUrl":"https://doi.org/10.4103/jdi.jdi_11_20","url":null,"abstract":"Introduction: To accelerate the process of restoring dental implants, achieving primary stability is of prime importance for effective osseointegration. The various bone substitute materials such as autograft (golden standard), allograft, xenograft, and alloplast are used to improve the stability of an implant and also as an aid in bone formation. The use of bone cements, among the alloplast material, is a relatively new premise in oral implantology. These have been extensively used in orthopedic surgery to secure an implanted prosthesis and to replace or bind bone fragments, resulting from trauma, and to fill cavities. This article aims to review the literature for the use of bone cements in oral implantology and evaluate its prospective use in future to secure dental implants. Materials and Methods: PubMed search was carried out using keywords such as “Bone Cements,” “Oral Implantology,” “Cements Fix Implants with Bone,” and “Cements to Grow Bone.” Of the 1422 articles, 1015 were selected after eliminating the duplicates. After applying the inclusion and exclusion criteria, 383 abstracts were assessed for relevance, of which 17 full-text articles were selected. Five articles were excluded with reasons and 12 eligible articles were included in the systematic review. Results: Eight studies out of the 12 concluded that bone cement could be a viable alternative to allogenic or other graft materials tested. Four articles were inconclusive or showed no significant difference. However, the quality of available evidence was poor as 10 out of the 12 studies were animal trials and 2 were in vitro studies. Due to considerable heterogeneity of data, meta-analysis could not be done. Conclusion: Bone cements can be considered a possible alternative to the existing graft materials. However, further research including controlled trials with human subjects needs to be undertaken to establish its potential.","PeriodicalId":212982,"journal":{"name":"Journal of Dental Implants","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130375671","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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