To evaluate the efficacy of different enamel conditioning methods while bonding a new bracket on a previously de-bonded site, and assess the difference in shear bond strength and ARI score if any. 125 human-extracted premolars were selected. 250 premolar brackets were procured. 125 brackets were bonded on the buccal surface of the premolars using different enamel conditioning methods (bonding sequence 1) and was followed by debonding using the Instron Universal testing machine (Debonding procedure I).The remaining 125 brackets were bonded (Bonding sequence II) on the same teeth after the removal of residual adhesive. Bonding sequence II was followed by debonding (Debonding procedure II), shear bond strength calculation, and ARI score calculation. There was a significant difference in SBS between the 5 groups after initial debonding. SEP group (group 4) showed the highest SBS followed by acid etching groups (groups 3, 2, and 1). The sandblasting group (group 5) had the lowest shear bond strength value. After the second debonding, SBS was found to be highest in Group 3 {37% o-phosphoric acid (Bonding I) sandblasting (Bonding II)} followed by Group 4 {SEP (Bonding I and Bonding II)}, group 2 {acid etching (Bonding I) SEP (Bonding II)}, and group 1 (acid etching in both bonding sequences). Group 5 (sandblasting in both sequences) had the least SBS. Non-significant differences were found in ARI score of the five groups. Self-etching primer group had highest SBS and sandblasting group had least SBS after first debond. The SBS of new brackets after two debonding procedures significantly decreased but was still found to be above the required bond strength. SEP and sandblasting can be used as a substitute to acid etching technique in second time bonding of brackets as these groups had higher SBS after second debond.
评估在先前脱粘部位粘接新托槽时采用不同釉质调理方法的效果，并评估剪切粘接强度和 ARI 评分（如有）的差异。选取 125 颗人类拔出的前臼齿。采购了 250 个前臼齿托槽。使用不同的釉质调节方法将 125 个托槽粘结在前臼齿的颊面（粘结顺序 1），然后使用 Instron 万能试验机进行脱粘处理（脱粘程序 I）。粘接序列 II 之后是剥离（剥离程序 II）、剪切粘接强度计算和 ARI 分数计算。初次剥离后，5 组之间的 SBS 存在明显差异。SEP 组（第 4 组）的 SBS 最高，其次是酸蚀组（第 3、2 和 1 组）。喷砂组（第 5 组）的剪切粘接强度值最低。在第二次剥离后，发现 SBS 最高的是第 3 组 {37% 邻磷酸（粘接 I）喷砂（粘接 II）}，其次是第 4 组 {SEP （粘接 I 和粘接 II）}、第 2 组 {酸性蚀刻（粘接 I）SEP（粘接 II）} 和第 1 组（两个粘接顺序均为酸性蚀刻）。第 5 组（两种粘接顺序均为喷砂）的 SBS 值最小。五组的 ARI 分数差异不显著。自酸蚀底漆组的 SBS 最高，喷砂组的 SBS 最低。经过两次脱粘程序后，新托槽的 SBS 明显下降，但仍高于所需的粘接强度。SEP 和喷砂可替代酸蚀技术用于托槽的二次粘接，因为这两组在二次脱钩后的 SBS 较高。
{"title":"To evaluate the effect of different enamel conditioning procedures on the shear bond strength of new metal bracket on previously debonded tooth surface - An in-vitro study","authors":"Puja Khanna, Navdeep Kaur, Sunny Mittal, Nishtha Arora, Sumit Chhabra, Harshika Gupta, Neha Kaswan","doi":"10.18231/j.ijohd.2023.051","DOIUrl":"https://doi.org/10.18231/j.ijohd.2023.051","url":null,"abstract":"To evaluate the efficacy of different enamel conditioning methods while bonding a new bracket on a previously de-bonded site, and assess the difference in shear bond strength and ARI score if any. 125 human-extracted premolars were selected. 250 premolar brackets were procured. 125 brackets were bonded on the buccal surface of the premolars using different enamel conditioning methods (bonding sequence 1) and was followed by debonding using the Instron Universal testing machine (Debonding procedure I).The remaining 125 brackets were bonded (Bonding sequence II) on the same teeth after the removal of residual adhesive. Bonding sequence II was followed by debonding (Debonding procedure II), shear bond strength calculation, and ARI score calculation. There was a significant difference in SBS between the 5 groups after initial debonding. SEP group (group 4) showed the highest SBS followed by acid etching groups (groups 3, 2, and 1). The sandblasting group (group 5) had the lowest shear bond strength value. After the second debonding, SBS was found to be highest in Group 3 {37% o-phosphoric acid (Bonding I) sandblasting (Bonding II)} followed by Group 4 {SEP (Bonding I and Bonding II)}, group 2 {acid etching (Bonding I) SEP (Bonding II)}, and group 1 (acid etching in both bonding sequences). Group 5 (sandblasting in both sequences) had the least SBS. Non-significant differences were found in ARI score of the five groups. Self-etching primer group had highest SBS and sandblasting group had least SBS after first debond. The SBS of new brackets after two debonding procedures significantly decreased but was still found to be above the required bond strength. SEP and sandblasting can be used as a substitute to acid etching technique in second time bonding of brackets as these groups had higher SBS after second debond.","PeriodicalId":516738,"journal":{"name":"International Journal of Oral Health Dentistry","volume":" 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139640610","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 : 2024-01-15DOI: 10.18231/j.ijohd.2023.056
Varun Kumar, Kedar Deole
Progress in materials science, bonding protocols, and innovative manufacturing techniques promotes the creation of new ceramic materials. These advancements aim to address the growing need for fixed prosthodontics restorations that are not only highly aesthetic but also biocompatible and durable. The recently launched ALD ceramic, designed for the "Chairside Economical Restoration of Esthetic Ceramics" (CEREC) system, yields restorations that are both aesthetically satisfying and superior clinically. The reduced processing time, coupled with elevated flexural strength, enhances efficiency of chairside workflows. In this particular case report, restoration was deemed necessary for anterior tooth. This tooth underwent preparation, scanning, and design processes using CEREC-Omnicam, with subsequent fabrication using MCXL The rehabilitation accomplished with the ALD blocks resulted in a visually pleasing and functionally sound outcome. Notably, this approach contributed to a more efficient overall treatment time, resulting in heightened satisfaction for both the patient and the practitioner.
{"title":"Smile renaissance: Monolithic marvels with cad-cam crown","authors":"Varun Kumar, Kedar Deole","doi":"10.18231/j.ijohd.2023.056","DOIUrl":"https://doi.org/10.18231/j.ijohd.2023.056","url":null,"abstract":"Progress in materials science, bonding protocols, and innovative manufacturing techniques promotes the creation of new ceramic materials. These advancements aim to address the growing need for fixed prosthodontics restorations that are not only highly aesthetic but also biocompatible and durable. The recently launched ALD ceramic, designed for the \"Chairside Economical Restoration of Esthetic Ceramics\" (CEREC) system, yields restorations that are both aesthetically satisfying and superior clinically. The reduced processing time, coupled with elevated flexural strength, enhances efficiency of chairside workflows. In this particular case report, restoration was deemed necessary for anterior tooth. This tooth underwent preparation, scanning, and design processes using CEREC-Omnicam, with subsequent fabrication using MCXL The rehabilitation accomplished with the ALD blocks resulted in a visually pleasing and functionally sound outcome. Notably, this approach contributed to a more efficient overall treatment time, resulting in heightened satisfaction for both the patient and the practitioner.","PeriodicalId":516738,"journal":{"name":"International Journal of Oral Health Dentistry","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140507622","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 : 2024-01-15DOI: 10.18231/j.ijohd.2023.057
Roopakunthavai Kunthavai Chellappa
Trauma is the one of the leading causes of morbidity and mortality in children. Although less, maxillofacial fractures contribute to an important part of morbidity in children. Here is a case of severe dento-alveolar fracture with intruded and displaced anterior teeth which was treated conservatively by heavy orthodontic wires. The greater osteogenic potential and faster healing rate in children help us to treat with conservative therapeutic procedures and with minimal displacement of fractures.
{"title":"Non-surgical repositioning of dentoalveolar fracture – A case report","authors":"Roopakunthavai Kunthavai Chellappa","doi":"10.18231/j.ijohd.2023.057","DOIUrl":"https://doi.org/10.18231/j.ijohd.2023.057","url":null,"abstract":"Trauma is the one of the leading causes of morbidity and mortality in children. Although less, maxillofacial fractures contribute to an important part of morbidity in children. Here is a case of severe dento-alveolar fracture with intruded and displaced anterior teeth which was treated conservatively by heavy orthodontic wires. The greater osteogenic potential and faster healing rate in children help us to treat with conservative therapeutic procedures and with minimal displacement of fractures.","PeriodicalId":516738,"journal":{"name":"International Journal of Oral Health Dentistry","volume":"7 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140508589","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：