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Zhang H, Yu H, Jiang S, Dong H, Yan C, Liu H, Li Q, Jiang H. Effects of different removal methods of excess resin adhesive on the microleakage of alumina all-ceramic crowns. BMC Oral Health 2023; 23:854. [PMID: 37951856 PMCID: PMC10640726 DOI: 10.1186/s12903-023-03581-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 10/26/2023] [Indexed: 11/14/2023] Open
Abstract
BACKGROUND Microleakage is a common problem that affects the quality and longevity of all-ceramic crowns. It is influenced by factors such as the resin cement, crown margin design and curing technique. However, few studies focus on the effect of different methods of removing excess resin adhesive on the microleakage of all-ceramic crowns. This study aimed to compare two methods of removing excess resin adhesive (the small brush and sickle methods) on the microleakage of all-ceramic crowns with different marginal clearances. METHODS Forty extracted third molars were prepared with a 90° shoulder margin and randomly divided into four groups according to their marginal lift (30, 60, 90 or 0 μm). Procera alumina crowns were fabricated using computer-aided design/computer-aided modelling and cemented onto the teeth with 3 M RelyX Unicem (3 M Company, United States) resin cement. Excess resin cement was removed by either the small brush or the sickle scalpel method. The marginal adaptation was observed with a digital microscope. After thermal cycling of the teeth, microleakage was assessed using the dye penetration test under a stereomicroscope. The Mann-Whitney U test and Kruskal-Wallis H test were used to compare the microleakage scores among different groups. RESULTS The small-brush group showed significantly better marginal adaptation and lower microleakage scores than the sickle group (p < 0.05). There was no significant difference in the microleakage score (grade 0) among different marginal clearances within each group (p > 0.05). CONCLUSION The small-brush method was more effective than the sickle scalpel method in reducing the microleakage of all-ceramic crowns with different marginal clearances. This method can improve the marginal adaptation and sealability of all-ceramic crowns, thus preventing secondary caries and other complications.
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Affiliation(s)
- Haiyang Zhang
- Department of Medicine, Jiangsu Vocational College of Medicine, NO.283 of Jiefang South Road, Yandu District, Yancheng, Jiangsu Province, 224000, China.
| | - Hao Yu
- Department of Medicine, Jiangsu Vocational College of Medicine, NO.283 of Jiefang South Road, Yandu District, Yancheng, Jiangsu Province, 224000, China
| | - Shangfei Jiang
- Department of Medicine, Jiangsu Vocational College of Medicine, NO.283 of Jiefang South Road, Yandu District, Yancheng, Jiangsu Province, 224000, China
| | - Haidao Dong
- Department of Medicine, Jiangsu Vocational College of Medicine, NO.283 of Jiefang South Road, Yandu District, Yancheng, Jiangsu Province, 224000, China
| | - Chengdong Yan
- Department of Medicine, Jiangsu Vocational College of Medicine, NO.283 of Jiefang South Road, Yandu District, Yancheng, Jiangsu Province, 224000, China
| | - Hong Liu
- Department of Medicine, Jiangsu Vocational College of Medicine, NO.283 of Jiefang South Road, Yandu District, Yancheng, Jiangsu Province, 224000, China
| | - Qing Li
- Department of Stomatology, The First Hospital of Qiqihaer, No.700 South Pukui Road, Qiqihaer, Heilongjiang Province, 161000, China
| | - Haiwei Jiang
- Department of Stomatology, The First Hospital of Qiqihaer, No.700 South Pukui Road, Qiqihaer, Heilongjiang Province, 161000, China.
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Evaluation of microleakage for three types of light cure orthodontic band cement. J Oral Biol Craniofac Res 2022; 12:352-357. [DOI: 10.1016/j.jobcr.2022.04.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Revised: 10/06/2021] [Accepted: 04/17/2022] [Indexed: 11/30/2022] Open
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Majji S, Peddu R, Kalyani M, Devikanth, Dokku A, Nuvusetty B. Comparative Evaluation of Microleakage Under APC Plus, APC Flash-Free and Conventional Stainless Steel Brackets: An In Vitro Study. JOURNAL OF INDIAN ORTHODONTIC SOCIETY 2022. [DOI: 10.1177/03015742221084015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Aim: The aim of the study was to compare and evaluate the microleakage under the Adhesive Precoated Plus (APCP), APC Flash-Free (APCF), and conventional stainless steel (SLS) brackets on the occlusal and gingival sides of the bracket base. Materials and Methods: 66 extracted premolar teeth were collected and divided equally into 3 groups. Bonding was done with APCP, APCF, and conventional SLS brackets using Transbond XT. After bonding, the samples were stored in a distilled water and thermocycled for 3000 cycles, followed by immersion in a 2% methylene blue for 24 h. After cleaning, the teeth were mounted in acrylic and sectioned longitudinally at about the center of the bracket in a buccolingual direction. Microleakage was recorded using a stereomicroscope. Results: Kruskal–Wallis H test showed a significant difference ( P < .005) in the microleakage scores between the 3 groups. Mann–Whitney U test showed a significant difference between group 1 to group 2 and group 1 to group 3 ( P < .005) and an insignificant difference between group 2 and group 3 on the occlusal side ( P = .116) and on the gingival side ( P = .063). Conclusion: Conventional SLS bracket group exhibited greater microleakage scores at both occlusal and gingival sides, when compared with APCP and APCF groups.
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Affiliation(s)
- Somasekhar Majji
- Department of Orthodontics, Sibar Institute of Dental Sciences, Guntur, Andhra Pradesh, India
| | - Revathi Peddu
- Department of Orthodontics, Sibar Institute of Dental Sciences, Guntur, Andhra Pradesh, India
| | - M. Kalyani
- Department of Orthodontics, Sibar Institute of Dental Sciences, Guntur, Andhra Pradesh, India
| | - Devikanth
- Department of Orthodontics, Sibar Institute of Dental Sciences, Guntur, Andhra Pradesh, India
| | - Aruna Dokku
- Department of Orthodontics, Sibar Institute of Dental Sciences, Guntur, Andhra Pradesh, India
| | - Bhargavi Nuvusetty
- Department of Orthodontics, Sibar Institute of Dental Sciences, Guntur, Andhra Pradesh, India
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Ghavami-Lahiji M, Davalloo RT, Tajziehchi G, Shams P. Micro-computed tomography in preventive and restorative dental research: A review. Imaging Sci Dent 2022; 51:341-350. [PMID: 34987994 PMCID: PMC8695474 DOI: 10.5624/isd.20210087] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 07/04/2021] [Accepted: 07/09/2021] [Indexed: 01/15/2023] Open
Abstract
Purpose The use of micro-computed tomography (micro-CT) scans in biomedical and dental research is growing rapidly. This study aimed to explore the scientific literature on approaches and applications of micro-CT in restorative dentistry. Materials and Methods An electronic search of publications from January 2009 to March 2021 was conducted using ScienceDirect, PubMed, and Google Scholar. The search included only English-language articles. Therefore, only studies that addressed recent advances and the potential uses of micro-CT in restorative and preventive dentistry were selected. Results Micro-CT is a tool that enables 3-dimensional imaging on a small scale with very high resolution. In this method, there is no need for sample preparation or slicing. Therefore, it is possible to examine the internal structure of tissue and the internal adaptation of materials to surfaces without destroying them. Due to these advantages, micro-CT has been recommended as a standard imaging tool in dental research for many applications such as tissue engineering, endodontics, restorative dentistry, and research on the mineral density of hard tissues and bone growth. However, the high costs of micro-CT, the time necessary for scanning and reconstruction, computer expertise requirements, and the enormous volume of information are drawbacks. Conclusion The potential of micro-CT as an emerging, accurate, non-destructive approach is clear, and the valuable research findings reported in the literature provide an impetus for researchers to perform future studies focusing on employing this method in dental research.
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Affiliation(s)
- Mehrsima Ghavami-Lahiji
- Dental Sciences Research Center, School of Dentistry, Guilan University of Medical Sciences, Rasht, Iran.,Department of Restorative Dentistry, School of Dentistry, Guilan University of Medical Sciences, Rasht, Iran
| | - Reza Tayefeh Davalloo
- Department of Restorative Dentistry, School of Dentistry, Guilan University of Medical Sciences, Rasht, Iran
| | - Gelareh Tajziehchi
- Department of Restorative Dentistry, School of Dentistry, Guilan University of Medical Sciences, Rasht, Iran
| | - Paria Shams
- Department of Restorative Dentistry, School of Dentistry, Guilan University of Medical Sciences, Rasht, Iran
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Ok U, Yilmaz BS, Ramoglu SI. Laser-Aided Enamel Conditioning: A Comparison of Microleakage Under Brackets Following Different Aging Procedures. JOURNAL OF ADVANCED ORAL RESEARCH 2019. [DOI: 10.1177/2320206819873823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Objective: To evaluate microleakage under the orthodontic adhesives applied following two version of erbium:yttrium aluminum garnet (Er:YAG) laser-aided enamel conditioning after thermal and thermomechanical simulators. Materials and Methods: A comparative analytical study based on metal braces bonded on the enamel of extracted teeth ( n = 160) etched with acid, Er:YAG laser and Er:YAG laser with an X-Runner handpiece, and self-etch adhesives. An arch wire was ligatured to samples which were embedded in acrylic blocks by two with periodontal ligaments. The specimens were subdivided into two groups: those aged with thermal cycling and thermomechanical aging procedures. The samples were immersed in basic fuchsin solution (0.5%) for 24 h. Buccolingual sections were performed on the mesial and distal wings of the braces. The color penetration at the gingival and occlusal margins of the adhesive-bracket and enamel-adhesive was evaluated under a stereomicroscope. The median and mean values of microleakage in both groups were evaluated with Kruskal–Wallis and Mann–Whitney U tests ( P < .05). Results: The highest microleakage was recorded in the gingival part of the samples aged with the thermomechanical aging procedure ( P = .001). The amount of microleakage generally increased in the samples subjected to thermomechanical loading, but the only significant difference was recorded in the gingival part in each four different conditioning methods. Conclusion: Microleakage of the phosphoric acid-etched groups was recorded with lower values for both aging methods. Thermomechanical aging should be included to microleakage studies due to increased microleakage on gingival side for all etching groups.
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Affiliation(s)
- Ufuk Ok
- Department of Orthodontics, Faculty of Dentistry, Istanbul Aydin University, Istanbul, Turkey
| | - Berza Sen Yilmaz
- Department of Orthodontics, Faculty of Dentistry, Bezmialem Vakif University, Istanbul, Turkey
| | - Sabri Ilhan Ramoglu
- Department of Orthodontics, Faculty of Dentistry, Altinbas University, Istanbul, Turkey
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Li Y, Mei L, Wei J, Yan X, Zhang X, Zheng W, Li Y. Effectiveness, efficiency and adverse effects of using direct or indirect bonding technique in orthodontic patients: a systematic review and meta-analysis. BMC Oral Health 2019; 19:137. [PMID: 31286897 PMCID: PMC6615229 DOI: 10.1186/s12903-019-0831-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2019] [Accepted: 06/24/2019] [Indexed: 02/05/2023] Open
Abstract
Background The direct and indirect bonding techniques are commonly used in orthodontic treatment. The differences of the two techniques deserve evidence-based study. Materials and methods Randomized controlled trials (RCTs), wherein direct and indirect bonding techniques were used in orthodontic patients were considered. The MEDLINE, EMBASE, CENTRAL and Web of Science databases were searched to identify relevant articles published up to December 2018. Grey literature was also searched. Two authors performed data extraction independently and in duplicate using the data collection form. The included trials were assessed using the Cochrane risk of bias assessment tool. Results Of the 1557 studies screened, 42 full articles were scrutinized and assessed for eligibility. Eight RCTs (247 participants) were finally included for the analyses. The qualitative synthesis showed that no significant difference existed in the accuracy of bracket placement and oral hygiene status between the two bonding techniques. The indirect bonding was found to involve less chairside time but more total working time compared with the direct bonding. The meta-analysis on bond failure rate demonstrated no significant difference between the direct and indirect bonding (RR = 1.13, 95% CI = 0.78–1.64, I2 = 22%, P = 0.50). Consistent results were obtained in the subgroup analyses and sensitivity analyses. Conclusion Weak evidence suggested that the direct and indirect bonding techniques had no significant difference in bracket placement accuracy, oral hygiene status and bond failure rate, for bonding orthodontic brackets. The indirect bonding might require less chairside time but more total working time in comparison with the direct bonding technique. High-quality well-designed randomized controlled trials are needed before a conclusive recommendation could be made. Electronic supplementary material The online version of this article (10.1186/s12903-019-0831-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Yanxi Li
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Li Mei
- Discipline of Orthodontics, Department of Oral Sciences, Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - Jieya Wei
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Conservative and Endodontic Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xinyu Yan
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, 14 Renmin South Road Third Section, Chengdu, 610041, China
| | - Xu Zhang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, 14 Renmin South Road Third Section, Chengdu, 610041, China
| | - Wei Zheng
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, 14 Renmin South Road Third Section, Chengdu, 610041, China.
| | - Yu Li
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, 14 Renmin South Road Third Section, Chengdu, 610041, China.
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González-Serrano C, Baena E, Fuentes MV, Albaladejo A, Míguez-Contreras M, Lagravère MO, Ceballos L. Shear bond strength of a flash-free orthodontic adhesive system after thermal aging procedure. J Clin Exp Dent 2019; 11:e154-e161. [PMID: 30805120 PMCID: PMC6383895 DOI: 10.4317/jced.55540] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Accepted: 01/14/2019] [Indexed: 11/05/2022] Open
Abstract
Background The aim of this study was to compare the shear bond strength (SBS) of a flash-free and precoated orthodontic adhesive with a compomer orthodontic adhesive before and after thermocycling. The adhesive remnant index (ARI) was also determined for both adhesives. Material and Methods The adhesive remnant index (ARI) was also determined for both adhesives. Material and Methods: A total of 120 human premolars were randomly divided into two groups (n=60) according to the orthodontic adhesive used: APC Flash-Free Adhesive Coated Appliance System (APC FF) or Transbond PLUS Color Change Adhesive (TP), as control. A SBS test was performed and ARI value for each specimen was also assessed. Results were analyzed by two-way ANOVA and Tukey's Chi-square test (p<0.05). Results SBS values were significantly influenced by thermocycling (p<0.01). Neither the orthodontic adhesive nor the interaction between adhesive and thermocycling statistically affected SBS results (p>0.05). Conclusions APC FF and TP showed similar bond strength results. Thermocycling induced a significant decrease in SBS values for the two adhesives tested, without differences between 10,000 and 20,000 thermal cycles. Moreover, APC FF left less adhesive remnants on the enamel compared to TP. Key words:APC Flash-Free, APC cement, aging, orthodontics, resin cements.
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Affiliation(s)
- Carlos González-Serrano
- PhD Student, Area of Stomatology, Health Sciences Faculty, Rey Juan Carlos University, Alcorcón, Madrid, Spain
| | - Eugenia Baena
- Assistant Professor, Area of Stomatology, Health Sciences Faculty, Rey Juan Carlos University, Alcorcón, Madrid, Spain
| | - María-Victoria Fuentes
- Assistant Professor, Area of Stomatology, Health Sciences Faculty, Rey Juan Carlos University, Alcorcón, Madrid, Spain
| | - Alberto Albaladejo
- Associate Professor, Department of Surgery, Faculty of Medicine, University of Salamanca, Salamanca, Spain
| | - Manuel Míguez-Contreras
- Assistant Professor, Department of Stomatology, Health Sciences Faculty, Alfonso X el Sabio, Madrid, Spain
| | - Manuel O Lagravère
- Associate Professor, School of Dentistry, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, Canada
| | - Laura Ceballos
- Full Professor, Area of Stomatology, Health Sciences Faculty, Rey Juan Carlos University, Alcorcón, Madrid, Spain
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M K. Relevance of Micro-leakage to Orthodontic Bonding - a Review. JOURNAL OF DENTAL BIOMATERIALS 2016; 3:254-260. [PMID: 28959751 PMCID: PMC5608060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
As it is seen, by passing the evolutionary process of banding of orthodontic attachments to the bonding ones, orthodontics have witnessed many developments, such as application of new adhesives, optimized base designs, new bracket materials, curing methods and more efficient primers. The studies often address the morphological, micro-leakage, and shear bond tests to evaluate bond efficacy. Among studies endeavored to develop the bond strength of brackets, some observed the reduction of micro-leakage of bracket-adhesive and enamel-adhesive interfaces. Owing to the importance of micro-leakage in orthodontics, this study aimed at reviewing the micro-leakage values directly relevant to the enamel decay and debonding of the brackets. To reach the best bond strength, the researchers tried to design different studies to evaluate the effect of variables and prevent any possible side effects in clinical situations. It is noticed that most studies have mainly focused on adhesives, enamel preparation and methods of curing which are discussed in this review. The literature was reviewed by searching databases, using micro-leakage and orthodontic bonding as the keywords . Having found the relevant studies, the researchers entered them into the database. After reviewing numerous studies conducted in this field, the type of adhesive or curing method was not found to have determinative role in the value of micro-leakage although more standardized studies are needed.
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Affiliation(s)
- Karandish M
- Health Policy Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
,Department of Orthodontics, Dental School, Shiraz University of Medical Sciences, Shiraz, Iran
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