A Review on Marginal Deterioration of Composite Restoration

Priyalakshmi., S; Ranjan, Manish

doi:10.9790/0853-13140609

Cited by 7 publications

(3 citation statements)

References 26 publications

(25 reference statements)

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“…[29] The marginal integrity of composite restoration refers to its marginal fit and marginal adaptation thereby increasing the longevity of the restorative material. [30] Resin composites have been the pinnacle of direct esthetic restorations ever since its discovery. [31] It is justifiable to speak of future dental practice because it takes many years for nascent technology emerging from scientific research laboratories to be developed and made commercially available for dentists' use.…”

Section: Discussionmentioning

confidence: 99%

Questionnaire Survey about Knowledge of Incremental Techniques in Composite Placement among Dentists in South India

NS Harini,

Jayalakshmi,

M Shankari

2023

IJSR

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Introduction: Dental composite resins are types of synthetic resins which are used in dentistry as restorative material or adhesives. Synthetic resins evolved as restorative materials since they were insoluble, esthetic, and insensitive to dehydration. Polymerization shrinkage is one of the major disadvantages in composites due to “c” factor. The aim of the study was to reduce this configuration, factor incremental techniques have been used. Several incremental techniques being followed by dentists. Incremental techniques are one of the most comfortable and qualitative technique which reduces “c” factor in composites. This is a questionnaire survey which assesses the most practiced incremental technique by various dentists. Materials and Methods: A questionnaire survey about the most popularly used incremental techniques being used in composite placement by several dentists has been analyzed. Results: Seventy percent of dentists are practicing incremental techniques in composite placement. The rest 30% of dentists are practicing bulk‑fill techniques. Of the dentists practicing incremental techniques, 71.43% are following oblique layering technique, 14.29% are following three‑site novel matrix, and the rest 14.29% are following successive cusp buildup technique. Conclusion: Of the three incremental techniques, oblique layering technique has many advantages such as allows easier Class II buildup, with proper proximal contact, and proximal smooth surfaces. Another advantage is that there is adequate light exposure for polymerization.

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Section: Discussionmentioning

confidence: 99%

Questionnaire Survey about Knowledge of Incremental Techniques in Composite Placement among Dentists in South India

NS Harini,

Jayalakshmi,

M Shankari

2023

IJSR

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“…Ideally, resin composite restorations should have and maintain high color stability, surface smoothness [ 5 ], dimensional stability [ 6 ], marginal integrity [ 7 ], wear resistance [ 8 ], etc. Maintaining surface smoothness of resin composite restorations is an important requirement, as rough surfaces contribute to increased staining susceptibility and external discoloration of the restoration, plaque accumulation, gingival irritation, periodontal disease, and recurrent caries [ 9 , 10 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of immersion and thermocycling in different beverages on the surface roughness of single- and multi-shade resin composites

El-Rashidy¹,

Shaalan²,

Abdelraouf³

et al. 2023

BMC Oral Health

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Background Resin composite restorations are highly esthetic restorations, which should have and maintain high surface polish. However, esthetic restorations are subjected to different beverages at variable temperatures, which may affect their surface roughness. This study aimed to evaluate the surface roughness of single-shade (Omnichroma) and multi-shade (Filtek Z350XT) composite materials, following aging by immersion and thermocycling in different beverages, simulating one year of clinical service. Methods Thirty specimens of each material were prepared and divided into 6 subgroups (n = 5). In each material, the grouping of the specimens was as follows: the first subgroup was the as-prepared specimens stored dry without immersion or thermocycling. The second, third, and fourth subgroups were immersed in saliva, tea, and red wine, respectively, for 12 days at 37 °C. The fifth and sixth subgroups were thermocycled for 10,000 cycles, in tea (the fifth between 37 and 57 °C) and in red wine (the sixth between 37 °C and12°C). The resultant surface roughness was measured by two different methods, stylus profilometer and atomic force microscopy (AFM). Intergroup comparison was performed using independent t test, while intragroup comparison was performed using one-way analysis of variance (ANOVA) followed by Tukey’s post-hoc test. Results Intergroup comparison between both composites showed no statistically significant differences in all groups using the stylus profilometer roughness measurements (P>0.05), while the AFM measurements showed significant difference (P ≤ 0.05) within all storage media except the as-prepared control (P = 0.0645), where nanofilled Filtek Z350 XT showed lower nano-roughness. Intragroup comparison data were variable, depending on the material, aging conditions, and roughness assessment tool. However, the resultant average surface roughness (Ra) values in all groups did not exceed the threshold value of Ra 0.2 μm. Conclusions Both resin composites attained and retained a clinically acceptable surface finish after immersion and thermocycling in different beverages.

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“…To ensure accuracy, various shade selection protocols have been devised and thorough knowledge of these protocols is important so that visual shade selections can be carried out with accuracy and precision (okubo et al, 1998; carsten, 2003; dagg et al, 2004). Increasingly composite are placed in preference due to patients demands for esthetics as well as the clinical desire to do minimal preparation where possible and provide patients with bonded esthetic restoration (S et al, 2014;Sachan, Srivastava and ranjan, 2016).…”

Section: Introductionmentioning

confidence: 99%

Knowledge,Attitude and Practice of Shade Matching Among Dental Students - A Survey Based Analysis

Raj¹

2020

Biosci. Biotech. Res. Comm

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This study was done to determine the knowledge, attitude and practise of shade matching techniques among dental students. Esthetics are of great importance in anterior teeth restorations. Shade selection plays an important role to achieve with a good aesthetic restoration that harmoniously blends to the natural dentition. Even though the colour may not be important to the physiological success of a dental restoration but it plays a dominant role in patient acceptance. Patients are currently demanding esthetic replacement that must match their existing dentition, and are more concerned about the shade match of their restoration rather than the quality of the restoration. This was a questionnaire based study. The study setting was a University setting. A pre-tested questionnaire with 10 questions was formulated for the collection of information. They were distributed to 100 dental students at a private dental institution and their answers were recorded. Excel Tabulation was done. SPSS was used to find out the association. In this study, all the dentists used only visual methods for shade matching. 62% of them did not find any difficulty during the process of shade matching. The second opinion from another dentist for shade matching was preferred by 68% of them while only 6% of them asked for the patient's opinion during shade matching. Natural light was mostly used for shade matching. From the present study, we can conclude that the dental students had comparatively better understanding and knowledge about the principles of tooth shade selection. Majority of them did not face any difficulties during shade matching. They had better knowledge about the effectiveness and reliability of natural light during shade matching. But the knowledge about recent advances in shade matching was very less so better training and work experience can help them to understand about the advancements and the significance of shade matching.

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A Review on Marginal Deterioration of Composite Restoration

Cited by 7 publications

References 26 publications

Questionnaire Survey about Knowledge of Incremental Techniques in Composite Placement among Dentists in South India

Questionnaire Survey about Knowledge of Incremental Techniques in Composite Placement among Dentists in South India

Effect of immersion and thermocycling in different beverages on the surface roughness of single- and multi-shade resin composites

Knowledge,Attitude and Practice of Shade Matching Among Dental Students - A Survey Based Analysis

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