scholarly journals Attitudes of some European dental undergraduate students to the placement of direct restorative materials in posterior teeth

2010 ◽  
Vol 37 (12) ◽  
pp. 916-926 ◽  
Author(s):  
C. D. LYNCH ◽  
S. E. GUILLEM ◽  
B. NAGRANI ◽  
A. S. M. GILMOUR ◽  
D. ERICSON
Keyword(s):  
Undergraduate Students ◽  
Posterior Teeth ◽  
Restorative Materials

scholarly journals Choice of Restorative Materials for Direct Posterior Restorations among Undergraduate Saudi College Students

2021 ◽  
Vol 15 (1) ◽  
pp. 439-445
Author(s):  
Azhar Iqbal ◽  
Osama Khattak ◽  
Alam Fayyaz ◽  
Rakhi Issrani ◽  
Osama Sulaiman Alrasheed ◽  
...  
Keyword(s):  
Undergraduate Students ◽  
Strong Influence ◽  
Dental Students ◽  
Mercury Toxicity ◽  
Posterior Teeth ◽  
Item Questionnaire ◽  
Significant Difference ◽  
Restorative Materials ◽  
Materials Used ◽  
Posterior Restorations

Background: The most common restorative materials used in dentistry are amalgam and composite. Amalgam is a controversial material owing to its mercury toxicity. With recent advances in the properties of composite materials, there has been a shift towards its use. Objectives: The aim of this study was to understand the perceptions of undergraduate dental students in a northern Saudi Arabian dental school about the choice of restorative materials for restoring posterior teeth. Methodology: The study included undergraduate students studying in 4th and 5th year dental program in College of Dentistry, Jouf University. A four-item questionnaire with 18 close-ended questions was developed by the investigators, which were hand delivered to all the students. Data analysis is presented through tables and descriptive methods. Results: A total of 98 (out of 131) undergraduate students participated in this study. Overall, the students reported a significantly strong influence of the type of restorative materials in relation to the cavity size and margin of the restorations along with the esthetics factor(p<0.05). There was slight influence on the student’s choice because of the instructor's influence, whereas the students felt they were knowledgeable and had appropriate training to use either amalgam or composite. The study also found that patient’s preference had a strong influence on choosing composite material. The students were mostly not influenced while choosing the material as far as the safety of it was concerned. However, the patient’s influence was slight when it came to the choice of the material. A significant difference was noted among the students when it came to pregnancy-related safety concerns where the choice of material was not influenced by either amalgam or composite (p=.002). Conclusion: The undergraduate dental students at College of Dentistry, Jouf University are comfortable in using both amalgam and composite as a posterior restorative material. They are knowledgeable about both the materials and are adequately trained to use either one.

Longevity of lithium disilicate indirect restorations in posterior teeth prepared by undergraduate students: A retrospective study up to 8.5 years

2021 ◽  
Vol 105 ◽  
pp. 103569
Author(s):  
Christina Fotiadou ◽  
Jürgen Manhart ◽  
Christian Diegritz ◽  
Matthias Folwaczny ◽  
Reinhard Hickel ◽  
...  
Keyword(s):  
Retrospective Study ◽  
Undergraduate Students ◽  
Lithium Disilicate ◽  
Posterior Teeth

scholarly journals Three-year clinical performance of composite restorations placed by undergraduate dental students

2011 ◽  
Vol 22 (2) ◽  
pp. 111-116 ◽  
Author(s):  
Flávio Renato Reis de Moura ◽  
Ana Regina Romano ◽  
Rafael Guerra Lund ◽  
Evandro Piva ◽  
Sinval Adalberto Rodrigues Júnior ◽  
...  
Keyword(s):  
Undergraduate Students ◽  
Clinical Performance ◽  
Dental Students ◽  
Secondary Caries ◽  
Posterior Teeth ◽  
Composite Restorations ◽  
Anterior Teeth ◽  
Term Evaluation

This retrospective study evaluated the clinical performance and the reasons for failure of anterior and posterior composite restorations placed by undergraduate dental students over a 3-year period. All cavities were restored using Prime & Bond 2.1 and TPH (Dentsply), according to the manufacturer's indications. One hundred and two patients who had received composite restorations by third and forth year undergraduate students were recalled and examined to analyze the quality of the restorations. The restorations were evaluated using the modified USPHS system. Two hundred and fifty-six composite restorations, 170 in anterior teeth and 86 in posterior teeth, were evaluated. Eighty-five percent of the restorations were considered satisfactory after 3 years. Class II and class IV restorations presented the highest prevalence of failure. Loss of the restoration and deficient marginal adaptation were the main causes of failure. No restoration failed due to secondary caries. Most restorations placed by dental students were considered satisfactory after long-term evaluation. Failure was more prevalent in larger restorations and was not associated with secondary caries.

scholarly journals Sealing Ability of Various Restorative Materials as Coronal Barriers between Endodontic Appointments

2013 ◽  
Vol 14 (1) ◽  
pp. 47-50 ◽  
Author(s):  
Zalilah Tapsir ◽  
Hany Mohamed Aly Ahmed ◽  
Norhayati Luddin ◽  
Adam Husein
Keyword(s):  
Methylene Blue ◽  
Bonferroni Correction ◽  
Depth Of Penetration ◽  
Posterior Teeth ◽  
Sealing Ability ◽  
Hermetic Seal ◽  
Dental Practitioners ◽  
Restorative Materials ◽  
The Difference ◽  
Materials Used

ABSTRACT Aim To evaluate and compare the microleakage of various restorative materials used as coronal barriers between endodontic appointments. Materials and methods Eighty extracted human permanent posterior teeth were prepared for standardized access cavities with dimensions of 4 × 4 × 4 mm. The teeth were then randomly divided into four groups; Kalzinol, Caviton, GC Fuji IX and GC Fuji II LC. After incubation, the samples were immersed in 2% methylene blue for 7 days. The depth of penetration was measured using a digital macroscope after longitudinal sectioning of each tooth. Kruskal-Wallis (p < 0.05) and multiple Mann-Whitney test with Bonferroni correction (p < 0.008) were used for data analysis. Results The degree of microleakage varied at the material/ tooth interface among the test materials, and the difference was statistically significant (p < 0.05). GC Fuji II LC group showed the least median microleakage value (0.8105 ± 0.305), followed by Caviton (1.1885 ± 0.396), GC Fuji IX (3.3985 ± 0.305) and Kalzinol (4.161 ± 0.853). Conclusion Within the limitations of this study, GC Fuji II LC exhibited the best marginal seal, and has the potential to be used as a suitable coronal barrier between endodontic appointments. Clinical significance Given the prime importance that dental practitioners should thoroughly restore any tooth with a suitable coronal barrier between endodontic appointments, this study shows that Fuji II LC has the ability to maintain a hermetic seal for 7 days. How to cite this article Tapsir Z, Ahmed HMA, Luddin N, Husein A. Sealing Ability of Various Restorative Materials as Coronal Barriers between Endodontic Appointments. J Contemp Dent Pract 2013;14(1):47-50.

Comparative Study to Determine the State of Tension Using FEM in a Premolar Restored with a Composite Inlay versus a Ceramic Inlay

2015 ◽  
Vol 638 ◽  
pp. 135-140
Author(s):  
Daniel Vlasceanu ◽  
Andrei Stamate ◽  
Horia Alexandru Petrescu ◽  
Gabriel Jiga ◽  
Mihai Tarcolea
Keyword(s):  
Dental Restoration ◽  
3D Analysis ◽  
Functional Requirements ◽  
Posterior Teeth ◽  
Study Results ◽  
Restorative Materials ◽  
Materials Used ◽  
The Aesthetic ◽  
Composite Inlay ◽  
Ceramic Inlay

The aesthetic composite inlay or ceramic ones are useful for restoring posterior teeth affected by decay processes. The choice of the inlay type can sometimes be a challenge for the dentist. The aim of this study is to identify the optimal type of an inlay used for second-class cavities that can assure a good long-term prognosis of dental restoration. In order to achieve this study, it was performed an 3D analysis of stresses recorded in a premolar restored with a composite inlay and a ceramic inlay, the simulation being done by finite elements method (FEM) using Ansys program. The study results showed that stresses registered in the tooth restored through ceramic inlay are more favorable than those recorded in the case of the tooth restored with composite inlay. The aesthetic composite inlays are preferred instead ceramic ones by many practitioners because of the advantages it presents: requires minimal preparations, technique is easier thanks to the easier handling of composite material, allow future adjustment of the occlusal surface, being easily adjusted and repaired, are radiopaque and, last but not least, have a lower cost. The question that arises frequently in medical practice is related to inlays behavior in case of functional requirements, depending on the material from which they are made. Configuration of preparation, the technique and the materials used for cementing, and restorative materials can influence the type of resistance to fracture of these restorations. The ability of restorative materials to support the masticatory forces and distribution of stresses in the vicinity of the adhesive interface constitutes a decisive factor in acquiring a restoration with a high degree of resistance to fracture.

scholarly journals Pattern of Occlusal Contacts in Lateral Excursions (Canine Protection or Group Function)

2015 ◽  
Vol 12 (1) ◽  
pp. 43-47
Author(s):  
B Sapkota ◽  
A Gupta
Keyword(s):  
Undergraduate Students ◽  
Functional Relationship ◽  
Lateral Position ◽  
Mandibular Movement ◽  
Medical Sciences ◽  
Group Function ◽  
Function Type ◽  
Posterior Teeth ◽  
Contact Patterns ◽  
Anterior Guidance

Background Establishing or providing occlusion that successfully permits efficient masticatory function is basic to dentistry. To maintain harmony of the occlusal condition, the posterior teeth must pass close to but not contact their opposing teeth during mandibular movement. Anterior guidance is essential to a harmonious functional relationship in the masticatory system.Objective The objective of this study was to find out the frequency of pattern of occlusal contacts in lateral position and to compare the accuracy of shim-stock and articulating paper.Method This study was conducted in the Department of Prosthodontics, Kathmandu University School of Medical Sciences. The study consisted of 80 healthy subjects between the age group of 18-30 years. They were selected randomly from undergraduate students and dental hygienist of college of dental science and written consent was taken. This age was selected because of minimal occlusal wear.Results In the present study with 80 participants the majority of the contact patterns with shimstock on the working side were group function( 84%), the canine protected occlusal patterns were found to be 12% and the unclassifiable pattern were found to be 4%. On the other hand, the data with articulating paper were group function type (94%), the canine protected occlusal patterns as 2.5% and the unclassifiable pattern were found to be 3.5%.In this study, with shim stock, the majority of the contact patterns were group function being 84% whereas with the articulating paper it was 94%. When shim stock occlusal strip (12 ?m thick) was compared to commonly used articulating paper (40 ?m), the excessive thickness of articulating paper that exceed the maximum recommended thickness of occlusal recording strips markedly must have given much more false contacts.Conclusion It was concluded that the majority of the contact pattern were group function being 84% with shim stock and 94% with articulating paper. Also shim stock exhibits superior accuracy and reliability.Kathmandu University Medical Journal Vol.12(1) 2014: 43-47

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