{"title":"Review of Selected Over-the-Counter Toothpastes in the Management of Dentine Hypersensitivity","authors":"","doi":"10.31038/jdmr.2024713","DOIUrl":"https://doi.org/10.31038/jdmr.2024713","url":null,"abstract":"","PeriodicalId":326702,"journal":{"name":"Journal of Dental and Maxillofacial Research","volume":"111 17","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141124638","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":"The Application of Case-Based Learning in Endodontics","authors":"","doi":"10.31038/jdmr.2024712","DOIUrl":"https://doi.org/10.31038/jdmr.2024712","url":null,"abstract":"","PeriodicalId":326702,"journal":{"name":"Journal of Dental and Maxillofacial Research","volume":" 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141128196","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":"Morphological Variation of Permanent Mandibular First Molar (Radix Entomolaris) (In vivo Study)","authors":"","doi":"10.31038/jdmr.2024711","DOIUrl":"https://doi.org/10.31038/jdmr.2024711","url":null,"abstract":"","PeriodicalId":326702,"journal":{"name":"Journal of Dental and Maxillofacial Research","volume":"77 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140462003","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}
Ad Sinodinou, D. Gillam, N. Mordan, David G. Gillam
Dentine sensitivity (DS) is a common painful condition affecting teeth. The exact mechanism of transmission of an environmental stimulus across dentine is not fully understood; currently the most accepted theory is the hydrodynamic theory as proposed initially by Brannstrom. Treatment has been concentrated on either reducing the dentine fluid flow by occlusion of tubule openings, or altering the pulpal sensory nerve activity preventing transmission of pain to the central nervous system. Aims and Method: The aims of the present in vitro study were to examine the dentine tubule occluding and penetrating properties of selected in-office desensitizing agents (varnishes and primers) using scanning electron microscopy and a dentine disc model. Results: Of the products examined, the fluoride varnishes, Bifluoride 12 and Duraphat, and Cervitec (a chlorhexidine containing varnish) were effective in both occluding and penetrating the dentine tubules. The results from All Bond 2, One Step and Scotchbond primers were superior to those of HEMA group primers, Gluma 3, Gluma CPS and Solobond Plus. Conclusions: These findings suggest a mechanism for the action of these potential desensitising agents and suggest that the tubule penetrating properties may play a role in the longevity of their retention on the tooth. Investigation of surface coverage and tubule penetrating characteristics are both necessary in order to fully evaluate in vitro the desensitising potential of agents claimed to reduce Dentine Sensitivity.
牙本质敏感(DS)是一种常见的牙齿疼痛状况。环境刺激跨牙本质传递的确切机制尚不完全清楚;目前最被接受的理论是由Brannstrom最初提出的水动力理论。治疗的重点是通过封堵小管开口来减少牙本质液体的流动，或者改变牙髓感觉神经的活动，防止疼痛传递到中枢神经系统。目的和方法:采用扫描电子显微镜和牙本质盘模型，观察所选择的室内脱敏剂(清漆和底漆)对牙本质小管的堵塞和穿透性能。结果:在检查的产品中，氟化物清漆、bi氟化物12和Duraphat以及Cervitec(一种含氯己定的清漆)对牙本质小管的堵塞和穿透都有效。All Bond 2、One Step和Scotchbond引物的结果优于HEMA组引物、Gluma 3、Gluma CPS和Solobond Plus。结论:这些发现提示了这些潜在的脱敏剂的作用机制，并表明小管穿透特性可能在它们在牙齿上的保留寿命中起作用。为了在体外充分评估降低牙本质敏感性的药物的脱敏潜力，研究表面覆盖和小管穿透特性都是必要的。
{"title":"Effects of Selected Primers and Vanishes on Open Dentine Tubules: An SEM Study","authors":"Ad Sinodinou, D. Gillam, N. Mordan, David G. Gillam","doi":"10.31038/jdmr.2023612","DOIUrl":"https://doi.org/10.31038/jdmr.2023612","url":null,"abstract":"Dentine sensitivity (DS) is a common painful condition affecting teeth. The exact mechanism of transmission of an environmental stimulus across dentine is not fully understood; currently the most accepted theory is the hydrodynamic theory as proposed initially by Brannstrom. Treatment has been concentrated on either reducing the dentine fluid flow by occlusion of tubule openings, or altering the pulpal sensory nerve activity preventing transmission of pain to the central nervous system. Aims and Method: The aims of the present in vitro study were to examine the dentine tubule occluding and penetrating properties of selected in-office desensitizing agents (varnishes and primers) using scanning electron microscopy and a dentine disc model. Results: Of the products examined, the fluoride varnishes, Bifluoride 12 and Duraphat, and Cervitec (a chlorhexidine containing varnish) were effective in both occluding and penetrating the dentine tubules. The results from All Bond 2, One Step and Scotchbond primers were superior to those of HEMA group primers, Gluma 3, Gluma CPS and Solobond Plus. Conclusions: These findings suggest a mechanism for the action of these potential desensitising agents and suggest that the tubule penetrating properties may play a role in the longevity of their retention on the tooth. Investigation of surface coverage and tubule penetrating characteristics are both necessary in order to fully evaluate in vitro the desensitising potential of agents claimed to reduce Dentine Sensitivity.","PeriodicalId":326702,"journal":{"name":"Journal of Dental and Maxillofacial Research","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114940633","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}
Objective: To determine 1) the most effective loading of the bioactive glass in a prophylactic polishing paste containing Bioactive glass particles that provides a more effective tubular occlusion and 2) the ideal application time required to achieve this objective using an in-office rotary cup with a fixed pressure and speed. Materials and Methods: 60 dentine discs were divided equally into 15 groups treated with 0%, 5.0%, 15.0% and 25.0% bioactive glass loading respectively and Nupro ® at different applications (30, 60 and 120 seconds). Dentine permeability (Percentage flow rate) of each specimen was measured using a modified Pashley hydraulic conductance model at four different time points: (1) before toothpaste application, (2) after toothpaste application, (3) after saliva immersion and (4) after an acid challenge. Data were analysed by ANOVA to determine whether there were any significant differences with the control group (Nupro ® ) compared to the test groups at three different time intervals (30, 60 and 120 seconds). 20 dentine discs were analysed to observe the surface tubular occlusive effect following application of the various loadings at different times using scanning electron microscope (SEM). Results: There was an increased percentage fluid flow rate (FR) reduction with increasing bioactive glass loading (0.0%, 5.0%, 15.0%, 25.0%) compared to the control material Nupro ® . The 25% bioactive glass loading was the most effective in reducing fluid flow at the various time points although there were no significant differences between the 15% and 25% glass loading. The 25.0% bioactive glass loading at 120 seconds also demonstrated effective tubular occlusion compared to the control prophylaxis paste. A comparison between the control and the various glass loadings at the various time points using SEM demonstrated increasing tubule occlusion with increasing time of application. Tubular occlusion also increased following artificial saliva immersion but decreased following an acidic challenge. Conclusions: Increasing the bioactive glass loading resulted in a greater fluid flow rate reduction with an increase of time of applications. Overall, the most effective application was with the 25% loaded bioactive glass at 120 seconds although the application of the 15% loaded bioactive glass prophylaxis paste for 30 seconds demonstrated effective tubular occlusion and fluid flow reduction.
{"title":"The Effect of Loading of Bioactive Glass in Desensitizing Polishing Pastes on Tubular Occlusion","authors":"","doi":"10.31038/jdmr.2022611","DOIUrl":"https://doi.org/10.31038/jdmr.2022611","url":null,"abstract":"Objective: To determine 1) the most effective loading of the bioactive glass in a prophylactic polishing paste containing Bioactive glass particles that provides a more effective tubular occlusion and 2) the ideal application time required to achieve this objective using an in-office rotary cup with a fixed pressure and speed. Materials and Methods: 60 dentine discs were divided equally into 15 groups treated with 0%, 5.0%, 15.0% and 25.0% bioactive glass loading respectively and Nupro ® at different applications (30, 60 and 120 seconds). Dentine permeability (Percentage flow rate) of each specimen was measured using a modified Pashley hydraulic conductance model at four different time points: (1) before toothpaste application, (2) after toothpaste application, (3) after saliva immersion and (4) after an acid challenge. Data were analysed by ANOVA to determine whether there were any significant differences with the control group (Nupro ® ) compared to the test groups at three different time intervals (30, 60 and 120 seconds). 20 dentine discs were analysed to observe the surface tubular occlusive effect following application of the various loadings at different times using scanning electron microscope (SEM). Results: There was an increased percentage fluid flow rate (FR) reduction with increasing bioactive glass loading (0.0%, 5.0%, 15.0%, 25.0%) compared to the control material Nupro ® . The 25% bioactive glass loading was the most effective in reducing fluid flow at the various time points although there were no significant differences between the 15% and 25% glass loading. The 25.0% bioactive glass loading at 120 seconds also demonstrated effective tubular occlusion compared to the control prophylaxis paste. A comparison between the control and the various glass loadings at the various time points using SEM demonstrated increasing tubule occlusion with increasing time of application. Tubular occlusion also increased following artificial saliva immersion but decreased following an acidic challenge. Conclusions: Increasing the bioactive glass loading resulted in a greater fluid flow rate reduction with an increase of time of applications. Overall, the most effective application was with the 25% loaded bioactive glass at 120 seconds although the application of the 15% loaded bioactive glass prophylaxis paste for 30 seconds demonstrated effective tubular occlusion and fluid flow reduction.","PeriodicalId":326702,"journal":{"name":"Journal of Dental and Maxillofacial Research","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128443025","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: Rapid palatal expansion is utilized in Orthodontics to treat maxillary transverse deficiencies. Such deficiencies can cause functional defects, misalignments, and mandibular shifts that can impact one’s function, comfort, and quality of life. This review aimed to synthesize the clinical findings of rapid palatal expanders. Methods: A literature search of skeletal effects of maxillary rapid palatal expansion was performed using PubMed and Google Scholar. Inclusion criteria consisted of studies that measured changes in maxillary width over at least one year of expansion and retention or radiographic confirmation of skeletal expansion with a sample size of over 15 subjects. Exclusion criteria were subjects with developmental defects, such as cleft palate, or any type of surgical assisted rapid palatal expansion. A total of 12 articles were found from January 1990 to April 2022 and included in this review. Results: All 12 articles reported that rapid palatal expansion notably increases the maxillary skeletal transversal dimension. Across all studies, the amount of intercanine expansion from rapid palatal expansion ranged from 2.5 to 4.0 mm, and the amount of intermolar expansion ranged from 3.9 to 6.5 mm. The studies also showed a significant expansion of nasal cavity (airway), various facial sutures being affected, occurrence of buccal tipping of all maxillary teeth, mandibular spacing being gained, and that relapse, although present, had an insignificant effect on the long-term retention of expansion. Conclusion: Rapid palatal expanders are effective in producing both immediate and long-term transverse expansion in subjects in late mixed dentition.
{"title":"Review on the Skeletal Effects of Rapid Palatal Expansion in Late Mixed Dentition","authors":"Man Hung, Ryan Gaw, Sharon Su, V. J. Cheever","doi":"10.31038/jdmr.2022524","DOIUrl":"https://doi.org/10.31038/jdmr.2022524","url":null,"abstract":"Introduction: Rapid palatal expansion is utilized in Orthodontics to treat maxillary transverse deficiencies. Such deficiencies can cause functional defects, misalignments, and mandibular shifts that can impact one’s function, comfort, and quality of life. This review aimed to synthesize the clinical findings of rapid palatal expanders. Methods: A literature search of skeletal effects of maxillary rapid palatal expansion was performed using PubMed and Google Scholar. Inclusion criteria consisted of studies that measured changes in maxillary width over at least one year of expansion and retention or radiographic confirmation of skeletal expansion with a sample size of over 15 subjects. Exclusion criteria were subjects with developmental defects, such as cleft palate, or any type of surgical assisted rapid palatal expansion. A total of 12 articles were found from January 1990 to April 2022 and included in this review. Results: All 12 articles reported that rapid palatal expansion notably increases the maxillary skeletal transversal dimension. Across all studies, the amount of intercanine expansion from rapid palatal expansion ranged from 2.5 to 4.0 mm, and the amount of intermolar expansion ranged from 3.9 to 6.5 mm. The studies also showed a significant expansion of nasal cavity (airway), various facial sutures being affected, occurrence of buccal tipping of all maxillary teeth, mandibular spacing being gained, and that relapse, although present, had an insignificant effect on the long-term retention of expansion. Conclusion: Rapid palatal expanders are effective in producing both immediate and long-term transverse expansion in subjects in late mixed dentition.","PeriodicalId":326702,"journal":{"name":"Journal of Dental and Maxillofacial Research","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122875183","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":"Measurement of Potassium Ion Diffusion through Dentine Using ISE","authors":"","doi":"10.31038/jdmr.2022523","DOIUrl":"https://doi.org/10.31038/jdmr.2022523","url":null,"abstract":"","PeriodicalId":326702,"journal":{"name":"Journal of Dental and Maxillofacial Research","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114273781","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 : 2022-07-14DOI: 10.26226/morressier.5ac383292afeeb00097a43ad
D. Gillam
{"title":"The In vitro Effectiveness of Oxalate Based Desensitizing Products on Tubular Occlusion","authors":"D. Gillam","doi":"10.26226/morressier.5ac383292afeeb00097a43ad","DOIUrl":"https://doi.org/10.26226/morressier.5ac383292afeeb00097a43ad","url":null,"abstract":"","PeriodicalId":326702,"journal":{"name":"Journal of Dental and Maxillofacial Research","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114441618","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":"Digital Dynamization Strategies in Orofacial Harmonization Clinical Case","authors":"","doi":"10.31038/jdmr.2022521","DOIUrl":"https://doi.org/10.31038/jdmr.2022521","url":null,"abstract":"","PeriodicalId":326702,"journal":{"name":"Journal of Dental and Maxillofacial Research","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131079300","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":"The Dynamic Change in Philosophy in the Formation of the Dental Biofilm and the Rationale of Debridement: An Overview","authors":"","doi":"10.31038/jdmr.2022515","DOIUrl":"https://doi.org/10.31038/jdmr.2022515","url":null,"abstract":"","PeriodicalId":326702,"journal":{"name":"Journal of Dental and Maxillofacial Research","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114710837","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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