Clinical/Photographic/Scanning Electron Microscopy Analysis of Pit and Fissure Sealants After 22 Years: A Case Series

2017 ◽  
Vol 42 (1) ◽  
pp. 10-18 ◽  
Author(s):  
D Sundfeld ◽  
LS Machado ◽  
LM Franco ◽  
FM Salomão ◽  
NIP Pini ◽  
...  
Keyword(s):  
Resin Composite ◽  
Glass Ionomer Cement ◽  
Case Series ◽  
Clinical Analysis ◽  
Permanent Teeth ◽  
Sem Images ◽  
Caries Lesions ◽  
Pits And Fissures ◽  
Sealant Material ◽  
Scanning Electron

SUMMARY Pit and fissure sealant is a clinical technique adopted to prevent caries lesion development. Ionomeric and/or resin-based materials are commonly used for this purpose. This article presents a case series of sealed teeth with 22-year follow-up evaluated by clinical, photographic, and microscopic analysis. In 1992, sixteen patients (9-14 years of age) had at least three teeth sealed with one of the following materials: resin-modified glass ionomer cement (RMGIC, Vitrebond or Fuji II LC) or polyacid-modified resin composite (PMRC, VariGlass VLC), totaling 86 sealed permanent teeth. After 22 years, 10 patients were recalled, representing 41 teeth. The retention of sealants was assessed by three methods: clinical analysis by visual inspection; photography; and scanning electron microscope (SEM) images and classified as retained (pits and fissures filled by sealant material); partially retained (pits and fissures partially filled by sealant material); or totally lost (no material was found in pits and fissures). The SEM images provided a higher number of retained sealants when compared with the clinical and photographic evaluations. Also, no totally lost scores were found with SEM analysis, regardless of the sealing material. No caries lesions were found. A fully or partially retained sealant in pits and fissures was capable of preventing caries lesions after 22 years within the patient pool analyzed.

Sealing Occlusal Dentin Caries in Permanent Molars

2016 ◽  
Vol 2 (1) ◽  
pp. 73-86 ◽  
Author(s):  
V. Qvist ◽  
M.K. Borum ◽  
K.D. Møller ◽  
T.R. Andersen ◽  
P. Blanche ◽  
...  
Keyword(s):  
Cox Regression ◽  
Resin Composite ◽  
Permanent Tooth ◽  
Drop Out ◽  
Permanent Teeth ◽  
Occlusal Caries ◽  
Second Molar ◽  
Non Invasive ◽  
Dentin Caries ◽  
Caries Lesions

The purpose of this study was to investigate the possibility of postponing restorative intervention of manifest occlusal caries in young, permanent dentition by non-invasive sealing. This RCT-designed study included 521 occlusal lesions in 521 patients aged 6 to 17 y. Based on clinical and radiographic assessments, all lesions required restorative treatment. After randomization (ratio 2:1), 368 resin sealings and 153 composite–resin restorations were performed by 68 dentists in 9 municipalities. The primary aims were to 1) analyze survival of sealings until replacement by restoration, 2) compare longevity of sealings and restorations until retreatments, and 3) compare effectiveness of sealings and restorations to halt caries progression in sealed lesions and beneath restorations. Furthermore, we aimed to identify factors influencing longevity and the effectiveness of sealings and restorations. Treatments were annually controlled, clinically and radiographically. After 7 y, the drop out rate was 8%, and 54% of the treatments were completed due to age. Of the sealings, 48% were retreated, including 31% replaced by restorations; 12% were still functioning. Of the restorations, 7% were repaired/renewed and 20% were still functioning. No endodontics was performed. Kaplan–Meier and Cox regression survival analyses were performed on 341 sealings and 152 restorations in first and second molar teeth. The 7-y survival was 37% (CI, 29% to 45%) for sealings and 91% (CI, 85% to 96%) for restorations (P < 0.001). The median survival time for sealings not replaced by restorations was 7.3 y (CI, 6.4 y to NA). Survival of sealings was increased in patients with low caries risk and/or excellent oral hygiene, second molars compared with first molars, and lesions not extending the middle one-third of the dentin. Survival of sealings was not influenced by municipality, sex, eruption stage or clinical surface cavitation. The results underline that it is possible to postpone or avoid restorative intervention of occlusal dentin caries lesions in young permanent teeth by non-invasive sealing. Knowledge Transfer Statement: The first restoration can ultimately be fatal for a young permanent tooth. A restoration may not be the final treatment but the start of an ongoing treatment with still more loss of tooth substance. The present study shows the possibility of treating occlusal dentin caries lesions with non-invasive resin sealings instead of conventional resin composite restorations in children and adolescents. Improved oral health can be expected.

scholarly journals Clinical Evaluation of Microhybrid Composite and Glass Ionomer Restorative Material in Permanent Teeth

2018 ◽  
Vol 19 (2) ◽  
pp. 226-232 ◽  
Author(s):  
Khalil Kharma ◽  
Tatiana Zogheib ◽  
Carina Mehanna
Keyword(s):  
Clinical Evaluation ◽  
Resin Composite ◽  
Statistical Significance ◽  
Glass Ionomer Cement ◽  
United States Public Health ◽  
The United States ◽  
Class I ◽  
Permanent Teeth ◽  
Restorative Material ◽  
Glass Ionomer

ABSTRACT Aim The aim of this study was to clinically compare glass ionomer cement (GIC) with microhybrid composite resin used in class I cavities on permanent teeth over a period of 9 months. Materials and methods A total of 40 teeth with class I cavities were divided into two groups (n = 20) and restored with GIC (EQUIA; GC) and microhybrid resin composite (Amelogen Plus; Ultradent). Restorations were evaluated at ×4.5 magnification using the United States Public Health Service (USPHS) criteria every 3 months. Statistical analysis was performed using the Fisher's exact test (α < 0.05). Results The data obtained reported no statistical significance difference between both groups in regard to anatomical shape, color, postoperative sensitivity, secondary caries, material handling, adaptation, and marginal staining. Conclusion The results of this clinical study showed that GIC (EQUIA; GC) can be used for the restoration of permanent teeth and may be more appropriate for certain clinical situations than the resin composite material. Clinical significance EQUIA (GIC) is a viable alternative to resin composite in restoring class I cavities in permanent teeth. How to cite this article Kharma K, Zogheib T, Bhandi S, Mehanna C. Clinical Evaluation of Microhybrid Composite and Glass Ionomer Restorative Material in Permanent Teeth. J Contemp Dent Pract 2018;19(2):226-232.

scholarly journals An update of treatment modalities in children and adolescents with teeth affected by molar incisor hypomineralisation (MIH): a systematic review

2021 ◽  
Author(s):  
C. Somani ◽  
G. D. Taylor ◽  
E. Garot ◽  
P. Rouas ◽  
N. A. Lygidakis ◽  
...  
Keyword(s):  
Composite Resin ◽  
Resin Composite ◽  
Research Question ◽  
Glass Ionomer Cement ◽  
Treatment Modalities ◽  
Cochrane Central Register ◽  
Molar Incisor Hypomineralisation ◽  
Fissure Sealants ◽  
Preformed Metal Crowns ◽  
Incisor Hypomineralisation

Abstract Purpose To systematically review the treatment modalities for molar-incisor hypomineralisation for children under the age of 18 years. The research question was, ‘What are the treatment options for teeth in children affected by molar incisor hypomineralisation?’ Methods An electronic search of the following electronic databases was completed MEDLINE, EMBASE, Cochrane Central Register of Controlled Trials, LILACS, Google Scholar and Open Grey identifying studies from 1980 to 2020. The PRISMA guidelines were followed. The studies were screened, data extracted and calibration was completed by two independent reviewers. Results Of 6220 potential articles, 34 studies were included. Twenty studies investigated management of molars with fissure sealants, glass ionomer cement, polyacid modified resin composite, composite resin, amalgam, preformed metal crowns, laboratory-manufactured crowns and extractions. In four articles management of incisors with microabrasion, resin-infiltration and a combination of approaches was reported. Eight studies looked at strategies to mineralise MIH-affected teeth and/or reduce hypersensitivity. Two studies investigated patient-centred outcomes following treatment. Due to the heterogeneity between the studies, meta-analysis was not performed. Conclusion The use of resin-based fissure sealants, preformed metal crowns, direct composite resin restorations and laboratory-made restorations can be recommended for MIH-affected molars. There is insufficient evidence to support specific approaches for the management of affected incisors. Products containing CPP-ACP may be beneficial for MIH-affected teeth.

scholarly journals Microscopy Methods for Biofilm Imaging: Focus on SEM and VP-SEM Pros and Cons

Biology ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 51
Author(s):  
Michela Relucenti ◽  
Giuseppe Familiari ◽  
Orlando Donfrancesco ◽  
Maurizio Taurino ◽  
Xiaobo Li ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Ion Beam ◽  
Ruthenium Red ◽  
Variable Pressure ◽  
Sem Images ◽  
Advantages And Disadvantages ◽  
Pros And Cons ◽  
Microscopy Techniques ◽  
Scanning Electron

Several imaging methodologies have been used in biofilm studies, contributing to deepening the knowledge on their structure. This review illustrates the most widely used microscopy techniques in biofilm investigations, focusing on traditional and innovative scanning electron microscopy techniques such as scanning electron microscopy (SEM), variable pressure SEM (VP-SEM), environmental SEM (ESEM), and the more recent ambiental SEM (ASEM), ending with the cutting edge Cryo-SEM and focused ion beam SEM (FIB SEM), highlighting the pros and cons of several methods with particular emphasis on conventional SEM and VP-SEM. As each technique has its own advantages and disadvantages, the choice of the most appropriate method must be done carefully, based on the specific aim of the study. The evaluation of the drug effects on biofilm requires imaging methods that show the most detailed ultrastructural features of the biofilm. In this kind of research, the use of scanning electron microscopy with customized protocols such as osmium tetroxide (OsO4), ruthenium red (RR), tannic acid (TA) staining, and ionic liquid (IL) treatment is unrivalled for its image quality, magnification, resolution, minimal sample loss, and actual sample structure preservation. The combined use of innovative SEM protocols and 3-D image analysis software will allow for quantitative data from SEM images to be extracted; in this way, data from images of samples that have undergone different antibiofilm treatments can be compared.

scholarly journals Effects of ionizing radiation on surface properties of current restorative dental materials

2021 ◽  
Vol 32 (6) ◽  
Author(s):  
Débora Michelle Gonçalves de Amorim ◽  
Aretha Heitor Veríssimo ◽  
Anne Kaline Claudino Ribeiro ◽  
Rodrigo Othávio de Assunção e Souza ◽  
Isauremi Vieira de Assunção ◽  
...  
Keyword(s):  
Ionizing Radiation ◽  
Surface Properties ◽  
Resin Composite ◽  
Dental Materials ◽  
Glass Ionomer Cement ◽  
Contact Angles ◽  
Glass Ionomer ◽  
Post Radiation ◽  
Restorative Dental Materials ◽  
Ionomer Cement

AbstractTo investigate the impact of radiotherapy on surface properties of restorative dental materials. A conventional resin composite—CRC (Aura Enamel), a bulk-fill resin composite—BFRC (Aura Bulk-fill), a conventional glass ionomer cement—CGIC (Riva self cure), and a resin-modified glass ionomer cement—RMGIC (Riva light cure) were tested. Forty disc-shaped samples from each material (8 mm diameter × 2 mm thickness) (n = 10) were produced according to manufacturer directions and then stored in water distilled for 24 h. Surface wettability (water contact angle), Vickers microhardness, and micromorphology through scanning electron microscopy (SEM) before and after exposition to ionizing radiation (60 Gy) were obtained. The data were statistically evaluated using the two-way ANOVA and Tukey posthoc test (p < 0.05). Baseline and post-radiation values of contact angles were statistically similar for CRC, BFRC, and RMGIC, whilst post-radiation values of contact angles were statistically lower than baseline ones for CGIC. Exposition to ionizing radiation statistically increased the microhardness of CRC, and statistically decreased the microhardness of CGIC. The surface micromorphology of all materials was changed post-radiation. Exposure to ionizing radiation negatively affected the conventional glass ionomer tested, while did not alter or improved surface properties testing of the resin composites and the resin-modified glass ionomer cement tested.

scholarly journals Radiological Evaluation of Stainless Steel Crowns Placed on Permanent Teeth in Patients Treated under General Anaesthesia

2021 ◽  
Vol 18 (5) ◽  
pp. 2509
Author(s):  
Marie-Laure Munoz-Sanchez ◽  
Natacha Linas ◽  
Nicolas Decerle ◽  
Valérie Collado ◽  
Denise Faulks ◽  
...  
Keyword(s):  
Stainless Steel ◽  
General Anaesthesia ◽  
Alveolar Bone ◽  
Dental Treatment ◽  
Glass Ionomer Cement ◽  
Permanent Teeth ◽  
Marginal Adaptation ◽  
Permanent Molars ◽  
A Minor ◽  
Ionomer Cement

Evidence-based evaluations of dental treatment are needed to support the development of special care dentistry services. This retrospective study was designed to collect and analyse X-ray images of permanent teeth restored with stainless steel crowns (SSC) in patients treated under general anaesthesia. Between 2013 and 2019, 360 permanent molars were crowned with SSCs in 198 adult patients. One calibrated investigator used an original validated tool to evaluate four radiographic criteria for molars restored with SSCs: i) marginal adaptation; ii) interdental proximal contact; iii) the presence of glass ionomer cement overflow; and iv) the loss of alveolar bone. Overall, no defect or a minor defect was reported for the majority of SSCs for the criteria “Marginal adaptation” (62.5%, n = 320), “Proximal contact” (82.2%, n = 236) and “Cement overflow” (95.8%, n = 337). Alveolar bone resorption was reported in 8.3% of cases, n = 14, after a mean period of 8.9 ± 14.3 months. It was shown that the restoration of permanent teeth using SSCs placed under general anaesthesia presents a low risk of periodontal morbidity in the medium term when assessed radiographically.

scholarly journals An Evaluation on Deep Caries Removal Method and Management Performed by Undergraduate Dental Students: A Malaysia Experience

2020 ◽  
Author(s):  
Nurin Izyani Othman ◽  
Hanan Umaira Ismail ◽  
Norazlina Mohammad ◽  
Norzalina Ghazali ◽  
Muhammad Syafiq Alauddin
Keyword(s):  
Current Knowledge ◽  
Glass Ionomer Cement ◽  
Dental Students ◽  
Primary Dentition ◽  
Permanent Teeth ◽  
Management Approach ◽  
Removal Method ◽  
Significant Difference ◽  
Caries Removal ◽  
Partial Caries Removal

Abstract Objectives The aim of this study is to investigate the current knowledge and attitude of deep caries removal method among dental students in Malaysia. Materials and Methods A total of 303 students (n = 303) responded to the online questionnaire. The first part of questionnaire was to evaluate the demographic data of the respondents and focused on the technique and management approach used for deep caries lesion. The second part investigated the preferred treatment used for deep caries based on the designated clinical case, while the third part assessed the factors that affected the decision on deep caries management. Statistical Analysis Independent t-test was used to compare difference between the two groups. Results Seventy four percent of the students have the knowledge of the different methods of caries removal, while 25.8% were only familiar with complete caries removal. The preferred method for deep caries removal in permanent teeth was partial caries removal (53%). For primary dentition, 45.6% of the students prefer to perform pulpotomy as compared with other techniques. There was no significant difference in caries removal method for permanent teeth between undergraduate year of study (p > 0.05), which was partial caries removal at 52.7 and 53.5%, respectively. For primary dentition, the preferred caries removal method was pulpotomy for year 4 (39.8%) and year 5 (52%) students. The popular material to restore deep caries was resin composite (42%) followed by glass ionomer cement (23.3%). Conclusions This study showed that partial caries removal was the preferred method despite partial understanding on the identification of the clinical indicators of the technique.

Scanning electron microscopy (SEM) and X-ray dispersive spectrometry evaluation of direct laser metal sintering surface and human bone interface: a case series

2010 ◽  
Vol 26 (1) ◽  
pp. 133-138 ◽  
Author(s):  
Carlo Mangano ◽  
Adriano Piattelli ◽  
Mario Raspanti ◽  
Francesco Mangano ◽  
Alessandra Cassoni ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Case Series ◽  
Human Bone ◽  
X Ray ◽  
Bone Interface ◽  
Direct Laser ◽  
Metal Sintering ◽  
Scanning Electron

Clinical analysis of color change and tooth sensitivity to violet LED during bleaching treatment: A case series with split-mouth design

2019 ◽  
Vol 27 ◽  
pp. 59-65 ◽  
Author(s):  
Marjorie de Oliveira Gallinari ◽  
Luciano Tavares Angelo Cintra ◽  
Morganna Borges de Almeida Souza ◽  
Ana Carolina Souza Barboza ◽  
Lara Maria Bueno Esteves ◽  
...  
Keyword(s):  
Color Change ◽  
Case Series ◽  
Clinical Analysis ◽  
Tooth Sensitivity ◽  
Bleaching Treatment
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