S. Wagle, A. Agrawal, Dinaz Bardoliwala, Chhaya Patil
Regeneration is a reproduction or reconstruction of a lost or injured part in such a way that the architecture and function of the lost or injured tissues are completely restored. Epithelium acts as a barrier to successful therapy because its presence interferes with the direct apposition of connective tissue and cementum, therefore would limit the height to which periodontal fibers can become inserted to cementum. Guided tissue regeneration (GTR) describes procedures attempting to regenerate lost periodontal structures through differential tissue responses and typically refers to regeneration of periodontal attachment. Barrier techniques are used for excluding connective tissue and gingiva from the root in the belief that they interfere with regeneration.
{"title":"Guided tissue regeneration","authors":"S. Wagle, A. Agrawal, Dinaz Bardoliwala, Chhaya Patil","doi":"10.4103/jorr.jorr_11_20","DOIUrl":"https://doi.org/10.4103/jorr.jorr_11_20","url":null,"abstract":"Regeneration is a reproduction or reconstruction of a lost or injured part in such a way that the architecture and function of the lost or injured tissues are completely restored. Epithelium acts as a barrier to successful therapy because its presence interferes with the direct apposition of connective tissue and cementum, therefore would limit the height to which periodontal fibers can become inserted to cementum. Guided tissue regeneration (GTR) describes procedures attempting to regenerate lost periodontal structures through differential tissue responses and typically refers to regeneration of periodontal attachment. Barrier techniques are used for excluding connective tissue and gingiva from the root in the belief that they interfere with regeneration.","PeriodicalId":31361,"journal":{"name":"Journal of Oral Research and Review","volume":"13 1","pages":"46 - 49"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44323914","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}
The study of dental occlusion often considered mysterious has been a subject of major interest since the time of the emergence of modern dentistry due to the fact that good clinical practice excels only after having proper knowledge about occlusion. Occlusal surfaces, if and when inhibited, cause trauma to the individual, becoming a matter of attention and concern for clinicians as well as patients. Coronoplasty is the procedure that selectively reduces the supracontacts, thus relieving patient of the same. It is used to provide better stability and occlusion in a permanent dentition noninvasively. The aim of this article is to throw light on occlusion, occlusion interferences, and treating of the same so that it can be applied by clinicians, especially periodontists, for treatment of the same.
{"title":"Unraveling coronoplasty in periodontics","authors":"Malvika Singh","doi":"10.4103/jorr.jorr_18_20","DOIUrl":"https://doi.org/10.4103/jorr.jorr_18_20","url":null,"abstract":"The study of dental occlusion often considered mysterious has been a subject of major interest since the time of the emergence of modern dentistry due to the fact that good clinical practice excels only after having proper knowledge about occlusion. Occlusal surfaces, if and when inhibited, cause trauma to the individual, becoming a matter of attention and concern for clinicians as well as patients. Coronoplasty is the procedure that selectively reduces the supracontacts, thus relieving patient of the same. It is used to provide better stability and occlusion in a permanent dentition noninvasively. The aim of this article is to throw light on occlusion, occlusion interferences, and treating of the same so that it can be applied by clinicians, especially periodontists, for treatment of the same.","PeriodicalId":31361,"journal":{"name":"Journal of Oral Research and Review","volume":"13 1","pages":"60 - 64"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48559487","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}
The aim of periodontal regenerative therapy is to restore the original architecture and function of lost periodontal tissues as a result of trauma or following destructive periodontal diseases. This review includes the biological principles, efficacy, and effectiveness of different biomaterials and their limitation in periodontal regeneration. Various human clinical trials showed a successful periodontal regeneration with different biomaterials. The regenerative potential of biomaterials was assessed truly by human histological study. However, there were a limited number of human histological evidences to demonstrate the true regenerative potential of biomaterials; further human histological studies were required to establish strong evidences for application of biomaterials in the regeneration of periodontium.
{"title":"Biomaterials for periodontal regeneration: A brief overview","authors":"Dhiraj Dufare","doi":"10.4103/jorr.jorr_30_20","DOIUrl":"https://doi.org/10.4103/jorr.jorr_30_20","url":null,"abstract":"The aim of periodontal regenerative therapy is to restore the original architecture and function of lost periodontal tissues as a result of trauma or following destructive periodontal diseases. This review includes the biological principles, efficacy, and effectiveness of different biomaterials and their limitation in periodontal regeneration. Various human clinical trials showed a successful periodontal regeneration with different biomaterials. The regenerative potential of biomaterials was assessed truly by human histological study. However, there were a limited number of human histological evidences to demonstrate the true regenerative potential of biomaterials; further human histological studies were required to establish strong evidences for application of biomaterials in the regeneration of periodontium.","PeriodicalId":31361,"journal":{"name":"Journal of Oral Research and Review","volume":"13 1","pages":"76 - 80"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46846761","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}
Ankita Katkurwar, D. Chaudhari, S. Mahale, A. Mahale, P. Kadam
Introduction: Human placental extract gel contains extract of human placenta and total nitrogen not more than 0.25% w/w. It is natural vitamins, peptides, nucleotides and amino acid gel. It enhances wound healing significantly; increases collagen synthesis and improves tensile strength of healing tissue. It brings about maximum increases in the percent of DNA, total protein and epithelialisation. It also has anti-inflammatory and analgesic effects. Aim and Objective: Clinical and histological evaluation of depigmented gingival epithelium on application of human placental extract gel. Material and Method: 10 healthy patients in the age group of 18-35 yrs. who were indicated for depigmentation procedure were selected for the study. Depigmentation was done with scalpel technique on maxillary and mandibular anterior region. In group A human placental extract gel was applied on the wound and non-eugenol pack was placed whereas group B was covered with non-eugenol pack only. Wound Healing index and Visual Analogue Score was assessed after 7 and 15 days. Epithelisation of wound was assessed by using toluidine blue after 7 days of surgery. Result: Application of human placental extract gel showed a statistically significant improvement clinically and histologically. Conclusion: Application of human placental extract can be a successful approach to protect the raw wound area of depigmented gingiva with better patient comfort and faster healing. Introduction: In today's era, increased aesthetic concerns have increased the number of patients receiving gingival depigmentation surgeries to create an aesthetically pleasing appearance of gingiva. Human placental extract gel contains extract of human placenta and total nitrogen not more than 0.25% w/w. It is natural vitamins, peptides, nucleotides and amino acid gel. It enhances wound healing significantly; increases collagen synthesis and improves tensile strength of healing tissue. It brings about maximum increases in the percent of DNA, total protein and epithelialisation. It also has anti-inflammatory and analgesic effects. Aim and Objective: Clinical and histological evaluation of depigmented gingival epithelium on application of human placental extract gel. Material and Method: 10 healthy patients in the age group of 18-35 yrs. who were indicated for depigmentation procedure were selected for the study. Depigmentation was done with scalpel technique on maxillary and mandibular anterior region. In group A human placental extract gel was applied on the wound and non-eugenol pack was placed whereas group B was covered with non-eugenol pack only. Wound Healing index and Visual Analogue Score was assessed after 7 and 15 days. Epithelisation of wound was assessed by using toluidine blue after 7 days of surgery. Result: Application of human placental extract gel showed a statistically significant improvement clinically and histologically. Conclusion: Application of human placental extract can be a successful appr
{"title":"Human placental extract a miracle that heals the wound faster","authors":"Ankita Katkurwar, D. Chaudhari, S. Mahale, A. Mahale, P. Kadam","doi":"10.4103/jorr.jorr_42_19","DOIUrl":"https://doi.org/10.4103/jorr.jorr_42_19","url":null,"abstract":"Introduction: Human placental extract gel contains extract of human placenta and total nitrogen not more than 0.25% w/w. It is natural vitamins, peptides, nucleotides and amino acid gel. It enhances wound healing significantly; increases collagen synthesis and improves tensile strength of healing tissue. It brings about maximum increases in the percent of DNA, total protein and epithelialisation. It also has anti-inflammatory and analgesic effects. Aim and Objective: Clinical and histological evaluation of depigmented gingival epithelium on application of human placental extract gel. Material and Method: 10 healthy patients in the age group of 18-35 yrs. who were indicated for depigmentation procedure were selected for the study. Depigmentation was done with scalpel technique on maxillary and mandibular anterior region. In group A human placental extract gel was applied on the wound and non-eugenol pack was placed whereas group B was covered with non-eugenol pack only. Wound Healing index and Visual Analogue Score was assessed after 7 and 15 days. Epithelisation of wound was assessed by using toluidine blue after 7 days of surgery. Result: Application of human placental extract gel showed a statistically significant improvement clinically and histologically. Conclusion: Application of human placental extract can be a successful approach to protect the raw wound area of depigmented gingiva with better patient comfort and faster healing. Introduction: In today's era, increased aesthetic concerns have increased the number of patients receiving gingival depigmentation surgeries to create an aesthetically pleasing appearance of gingiva. Human placental extract gel contains extract of human placenta and total nitrogen not more than 0.25% w/w. It is natural vitamins, peptides, nucleotides and amino acid gel. It enhances wound healing significantly; increases collagen synthesis and improves tensile strength of healing tissue. It brings about maximum increases in the percent of DNA, total protein and epithelialisation. It also has anti-inflammatory and analgesic effects. Aim and Objective: Clinical and histological evaluation of depigmented gingival epithelium on application of human placental extract gel. Material and Method: 10 healthy patients in the age group of 18-35 yrs. who were indicated for depigmentation procedure were selected for the study. Depigmentation was done with scalpel technique on maxillary and mandibular anterior region. In group A human placental extract gel was applied on the wound and non-eugenol pack was placed whereas group B was covered with non-eugenol pack only. Wound Healing index and Visual Analogue Score was assessed after 7 and 15 days. Epithelisation of wound was assessed by using toluidine blue after 7 days of surgery. Result: Application of human placental extract gel showed a statistically significant improvement clinically and histologically. Conclusion: Application of human placental extract can be a successful appr","PeriodicalId":31361,"journal":{"name":"Journal of Oral Research and Review","volume":"13 1","pages":"1 - 5"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43840859","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}
Periodontal disease is host immune-mediated inflammatory disease with periods of progression and periods of remission. It results in the breakdown of supporting connective tissue and alveolar bone with the resultant permanent loss of the teeth. There are nonsurgical and surgical therapies available along with local and systemic antibiotic adjuncts. The diode laser therapy is an effective adjunct along with nonsurgical treatment in treating periodontitis. The diode laser not only removes infected sulcular epithelium but also infected connective tissue even in anatomically inaccessible niches. It fastens the treatment and healing with more patient comfort. To overcome antibiotic resistance due to systemic administration, local drug delivery agents are effective in eliminating the bacteria. The antimicrobial agents used as local drug delivery agents include tetracycline, ofloxacin, clindamycin, chlorhexidine, etc., Tetracycline, as well as its derivatives doxycycline and minocycline, are the most commonly used antimicrobial agents in the treatment of periodontal infections. These local drug delivery agents are used either alone or as an adjunct with scaling and root planning.
{"title":"Management of chronic periodontitis using diode laser and tetracycline fibers","authors":"Nilofer Habeeb Rahman, Nanditha Suresh, Syed Nowfiya","doi":"10.4103/jorr.jorr_22_20","DOIUrl":"https://doi.org/10.4103/jorr.jorr_22_20","url":null,"abstract":"Periodontal disease is host immune-mediated inflammatory disease with periods of progression and periods of remission. It results in the breakdown of supporting connective tissue and alveolar bone with the resultant permanent loss of the teeth. There are nonsurgical and surgical therapies available along with local and systemic antibiotic adjuncts. The diode laser therapy is an effective adjunct along with nonsurgical treatment in treating periodontitis. The diode laser not only removes infected sulcular epithelium but also infected connective tissue even in anatomically inaccessible niches. It fastens the treatment and healing with more patient comfort. To overcome antibiotic resistance due to systemic administration, local drug delivery agents are effective in eliminating the bacteria. The antimicrobial agents used as local drug delivery agents include tetracycline, ofloxacin, clindamycin, chlorhexidine, etc., Tetracycline, as well as its derivatives doxycycline and minocycline, are the most commonly used antimicrobial agents in the treatment of periodontal infections. These local drug delivery agents are used either alone or as an adjunct with scaling and root planning.","PeriodicalId":31361,"journal":{"name":"Journal of Oral Research and Review","volume":"13 1","pages":"42 - 45"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41624190","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}
Khooshbu Gayen, S. Shirolkar, Sauvik Galui, S. Saha, S. Sarkar
The pandemic of coronavirus disease 2019 has been the most unprecedented event of our lifetimes, touching, and probably forever changing all realms of our lives and livelihoods. The field of general and speciality dental practice remains no exception. Among all health-care professionals, dentists as oral health caregivers are those who are most susceptible to contracting this infection. A never before situation like this has engaged all of humanity in studies and research for better understanding and possibly reducing the disaster that this terrible virus can inflict upon humanity. These efforts have led to a lot data, much of which is anecdotal evidence and thus a dire need to segregate facts has risen. Dentists in general and pediatric dentists in particular who routinely deal with children and managing them for dental care are at a heightened risk because of their job primarily in the oral cavity. Children routinely take longer appointments compared to adults and require more care to be exercised during this pandemic. This infection often presents asymptomatically which further complicates the problem. Thus, in a world that exists during and after this pandemic demands a reimagined dental practice that is safe for the health workers as well as effectively and efficiently delivers oral health care to all age groups. This can be achieved by rigorous and extensive study and consolidation of this knowledge which can then be adapted by health workers on the ground.
{"title":"Consolidating facts and redesigning a novel pediatric dental practice in nCOVID-19 pandemic","authors":"Khooshbu Gayen, S. Shirolkar, Sauvik Galui, S. Saha, S. Sarkar","doi":"10.4103/jorr.jorr_17_20","DOIUrl":"https://doi.org/10.4103/jorr.jorr_17_20","url":null,"abstract":"The pandemic of coronavirus disease 2019 has been the most unprecedented event of our lifetimes, touching, and probably forever changing all realms of our lives and livelihoods. The field of general and speciality dental practice remains no exception. Among all health-care professionals, dentists as oral health caregivers are those who are most susceptible to contracting this infection. A never before situation like this has engaged all of humanity in studies and research for better understanding and possibly reducing the disaster that this terrible virus can inflict upon humanity. These efforts have led to a lot data, much of which is anecdotal evidence and thus a dire need to segregate facts has risen. Dentists in general and pediatric dentists in particular who routinely deal with children and managing them for dental care are at a heightened risk because of their job primarily in the oral cavity. Children routinely take longer appointments compared to adults and require more care to be exercised during this pandemic. This infection often presents asymptomatically which further complicates the problem. Thus, in a world that exists during and after this pandemic demands a reimagined dental practice that is safe for the health workers as well as effectively and efficiently delivers oral health care to all age groups. This can be achieved by rigorous and extensive study and consolidation of this knowledge which can then be adapted by health workers on the ground.","PeriodicalId":31361,"journal":{"name":"Journal of Oral Research and Review","volume":"13 1","pages":"71 - 75"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43009198","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}
The clinical effectiveness of adhesive agents has been mainly evaluated using class V restorations. Clinical studies evaluating adhesives in combination with posterior composites are scarce and of short-term periods. This paper is aimed to review the current literature on the clinical effectiveness of contemporary adhesives when used to restore posterior teeth (Class I and Class II). To conduct this review, Scopus, PubMed, and Google Scholar databases were used to search for peer-reviewed articles on the clinical performance of adhesive agents in posterior composite restorations. Search terms used included “adhesive agents,” “clinical evaluation,” “composite restorations,” “posterior teeth,” “self-etch adhesives,” “etch -and -rinse adhesives,” and “universal adhesives.” To enrich the results, reference mining of the articles that were identified was used to locate other papers. The process of cross-referencing continued until no new articles were identified. No limits were placed on the year of publication, but only articles in English were considered. The current review found that simplification in the adhesive technique so far seems to affect the clinical performance. There is a relative paucity of evidence relating to the performance of universal adhesive agents in posterior restorations. Further long-term clinical studies are needed to evaluate the clinical performance of adhesive agents.
{"title":"The clinical effectiveness of adhesive agents in posterior restorations: Which adhesive strategy performs better?","authors":"Naji Ziad Arandi, M. Thabet","doi":"10.4103/jorr.jorr_25_20","DOIUrl":"https://doi.org/10.4103/jorr.jorr_25_20","url":null,"abstract":"The clinical effectiveness of adhesive agents has been mainly evaluated using class V restorations. Clinical studies evaluating adhesives in combination with posterior composites are scarce and of short-term periods. This paper is aimed to review the current literature on the clinical effectiveness of contemporary adhesives when used to restore posterior teeth (Class I and Class II). To conduct this review, Scopus, PubMed, and Google Scholar databases were used to search for peer-reviewed articles on the clinical performance of adhesive agents in posterior composite restorations. Search terms used included “adhesive agents,” “clinical evaluation,” “composite restorations,” “posterior teeth,” “self-etch adhesives,” “etch -and -rinse adhesives,” and “universal adhesives.” To enrich the results, reference mining of the articles that were identified was used to locate other papers. The process of cross-referencing continued until no new articles were identified. No limits were placed on the year of publication, but only articles in English were considered. The current review found that simplification in the adhesive technique so far seems to affect the clinical performance. There is a relative paucity of evidence relating to the performance of universal adhesive agents in posterior restorations. Further long-term clinical studies are needed to evaluate the clinical performance of adhesive agents.","PeriodicalId":31361,"journal":{"name":"Journal of Oral Research and Review","volume":"13 1","pages":"65 - 70"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45136308","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}
Aim: The aim of this in vitro study was to determine the effect of fiber-reinforcement on the color changes and degree of polymerization of two different composite resins. Materials and Methods: A bulk-fill composite resin and a methacrylate-based composite resin with A2 shade were used in this study. Three groups of specimens (control group with no reinforcements, polyethylene fiber-reinforced composite and glass fiber-reinforced composite groups) were prepared from each composite. The color change of the specimens with polymerization was measured. Then, to determine the degree of polymerization, the hardness ratios were calculated by measuring the bottom and top surface hardness of all specimens. The data were analyzed by analysis of variance, Duncan's multiple range tests, and Independent sample t-test. Results: Statistical analysis of variance presented the significance difference between composite and fiber for color change (P < 0.05). The highest color change by polymerization was seen in the polyethylene fiber-reinforced bulk-fill composite group. It was found that the addition of fiber to composite resins significantly reduced the degree of polymerization (P < 0.05). Conclusion: The addition of fiber may lead to color change and reduce the degree of polymerization of composite resins. The amount of change may differ depending on the structural properties of the composite resins and fiber.
{"title":"Effect of fiber reinforcement on color stability and degree of polymerization of different composite resins","authors":"O. Karatas","doi":"10.4103/jorr.jorr_27_20","DOIUrl":"https://doi.org/10.4103/jorr.jorr_27_20","url":null,"abstract":"Aim: The aim of this in vitro study was to determine the effect of fiber-reinforcement on the color changes and degree of polymerization of two different composite resins. Materials and Methods: A bulk-fill composite resin and a methacrylate-based composite resin with A2 shade were used in this study. Three groups of specimens (control group with no reinforcements, polyethylene fiber-reinforced composite and glass fiber-reinforced composite groups) were prepared from each composite. The color change of the specimens with polymerization was measured. Then, to determine the degree of polymerization, the hardness ratios were calculated by measuring the bottom and top surface hardness of all specimens. The data were analyzed by analysis of variance, Duncan's multiple range tests, and Independent sample t-test. Results: Statistical analysis of variance presented the significance difference between composite and fiber for color change (P < 0.05). The highest color change by polymerization was seen in the polyethylene fiber-reinforced bulk-fill composite group. It was found that the addition of fiber to composite resins significantly reduced the degree of polymerization (P < 0.05). Conclusion: The addition of fiber may lead to color change and reduce the degree of polymerization of composite resins. The amount of change may differ depending on the structural properties of the composite resins and fiber.","PeriodicalId":31361,"journal":{"name":"Journal of Oral Research and Review","volume":"13 1","pages":"25 - 30"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43632373","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}
O. Karatas, M. Yılmaz, Pınar Gul, O. Sagsoz, M. Yapar
Objective: The aim of this study was to investigate the degree of polymerization of composite resins cured with different light-curing units (LCUs). Materials and Methods: Three bulk-fill composite (Beautifil Bulk-Fill Giomer, Filtek Bulk-Fill, and X-Tra Fill) and a methacrylate-based composite (Filtek Z250) were used in this study. Thirty disc-shaped specimens, 4 mm thick, were prepared from each composite resin. Specimens were divided into three groups and polymerized with light-emitting diode (LED), Plasma arch curing unit (PAC), and quartz-tungsten halogen LCU. The bottom and top surface microhardness of the specimens stored in distilled water for 24 h at 37°C after polymerization was measured with a universal test device. The hardness ratio (HR) of specimens was calculated by the bottom surface microhardness/top surface microhardness formula. Data were analyzed by two-way ANOVA and Tukey's least significant difference post hoc tests (α = 0.05). Results: Statistically significant differences were detected between the mean HR values of the specimens polymerized with different LCUs (P < 0.05). The mean HR values of Beautifil Bulk-Fill Giomer specimens were found to be statistically significantly lower than other composites (P < 0.05). The mean HR values of the specimens polymerized with PAC LCU were found to be statistically significantly lower than other LCUs (P < 0.05). Conclusion: The degree of polymerization of the composite resin restoration may be affected by the structural properties of the resin and the type of LCU. The clinician may use alternative techniques, especially in deep cavities.
{"title":"The effect of different curing units on the degree of polymerization of different composite resins","authors":"O. Karatas, M. Yılmaz, Pınar Gul, O. Sagsoz, M. Yapar","doi":"10.4103/jorr.jorr_31_20","DOIUrl":"https://doi.org/10.4103/jorr.jorr_31_20","url":null,"abstract":"Objective: The aim of this study was to investigate the degree of polymerization of composite resins cured with different light-curing units (LCUs). Materials and Methods: Three bulk-fill composite (Beautifil Bulk-Fill Giomer, Filtek Bulk-Fill, and X-Tra Fill) and a methacrylate-based composite (Filtek Z250) were used in this study. Thirty disc-shaped specimens, 4 mm thick, were prepared from each composite resin. Specimens were divided into three groups and polymerized with light-emitting diode (LED), Plasma arch curing unit (PAC), and quartz-tungsten halogen LCU. The bottom and top surface microhardness of the specimens stored in distilled water for 24 h at 37°C after polymerization was measured with a universal test device. The hardness ratio (HR) of specimens was calculated by the bottom surface microhardness/top surface microhardness formula. Data were analyzed by two-way ANOVA and Tukey's least significant difference post hoc tests (α = 0.05). Results: Statistically significant differences were detected between the mean HR values of the specimens polymerized with different LCUs (P < 0.05). The mean HR values of Beautifil Bulk-Fill Giomer specimens were found to be statistically significantly lower than other composites (P < 0.05). The mean HR values of the specimens polymerized with PAC LCU were found to be statistically significantly lower than other LCUs (P < 0.05). Conclusion: The degree of polymerization of the composite resin restoration may be affected by the structural properties of the resin and the type of LCU. The clinician may use alternative techniques, especially in deep cavities.","PeriodicalId":31361,"journal":{"name":"Journal of Oral Research and Review","volume":"13 1","pages":"31 - 36"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42787988","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}
K. Sudha, Jyothsna Kasireddy, Dunnala Sowjanya, Mekala Ashwini, Kurati Sakyarshi
Context: Proper method of isolation plays a key role in the restoration of noncarious cervical lesions (NCCLs). Aims: The aim of this in vivo study was to compare the efficacy of two isolation techniques in restoring NCCLs using flowable composite. Settings and Design: Forty patients who fulfill the inclusion criteria were selected based on the power of the study (0.86). The participants were divided into two groups according to the split-mouth design. Materials and Methods: In Group A, lesion isolation was done using the Mylar matrix band with photocurable gingival barrier, and in Group B, using Metal matrix band and gingival barrier. The restorations were assessed immediately and after 6 months, using modified US Public Health Service criteria: marginal integrity, marginal discoloration, wear, retention, secondary caries, and postoperative sensitivity. Statistical Analysis: IBM SPSS (version 21.0) software was used. McNemar's and Chi-square tests were performed, considering P < 0.05 for statistical significance. Results: Both the groups demonstrated satisfactory clinical performance. Upon inter- and intragroup comparison of the two isolation methods, there was no statistically significant difference (P > 0.05). Conclusions: Within the limitations of the study, both the groups performed similarly in isolation of NCCLs. However, long-term clinical studies must be needed for further evaluation.
{"title":"Comparative evaluation of two different isolation techniques in restoration of noncarious cervical lesions using flowable composite: A split-mouth in vivo study","authors":"K. Sudha, Jyothsna Kasireddy, Dunnala Sowjanya, Mekala Ashwini, Kurati Sakyarshi","doi":"10.4103/jorr.jorr_4_21","DOIUrl":"https://doi.org/10.4103/jorr.jorr_4_21","url":null,"abstract":"Context: Proper method of isolation plays a key role in the restoration of noncarious cervical lesions (NCCLs). Aims: The aim of this in vivo study was to compare the efficacy of two isolation techniques in restoring NCCLs using flowable composite. Settings and Design: Forty patients who fulfill the inclusion criteria were selected based on the power of the study (0.86). The participants were divided into two groups according to the split-mouth design. Materials and Methods: In Group A, lesion isolation was done using the Mylar matrix band with photocurable gingival barrier, and in Group B, using Metal matrix band and gingival barrier. The restorations were assessed immediately and after 6 months, using modified US Public Health Service criteria: marginal integrity, marginal discoloration, wear, retention, secondary caries, and postoperative sensitivity. Statistical Analysis: IBM SPSS (version 21.0) software was used. McNemar's and Chi-square tests were performed, considering P < 0.05 for statistical significance. Results: Both the groups demonstrated satisfactory clinical performance. Upon inter- and intragroup comparison of the two isolation methods, there was no statistically significant difference (P > 0.05). Conclusions: Within the limitations of the study, both the groups performed similarly in isolation of NCCLs. However, long-term clinical studies must be needed for further evaluation.","PeriodicalId":31361,"journal":{"name":"Journal of Oral Research and Review","volume":"13 1","pages":"37 - 41"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43199475","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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