Clinical Assessment of Postoperative Sensitivity in Posterior Composite Restorations

Abstract

This incidence of postoperative sensitivity was evaluated in resin-based posterior restorations. Two hundred and ninety-two direct restorations were evaluated in premolars and molars. A total of 143 Class I and 149 Class II restorations (MO/OD and MOD) were placed in patients ranging in age from 30 to 50 years. After the cavity preparations were completed, a rubber dam was placed, and the preparations were restored using a total-etch system (Prime & Bond NT) and a resin-based restorative material (TPH Spectrum). The patients were contacted after 24 hours and 7, 30 and 90 days postoperatively and questioned regarding the presence of sensitivity and the stimuli that triggered that sensitivity. The Chi-square and Fisher's Exact Test were used for statistical analysis. Evaluation at 24 hours after restorative treatment revealed statistically significant differences among the types of cavity preparations restored and the occurrence of postoperative sensitivity (p=0.0003), with a higher frequency of sensitivity in Class II MOD Clinical RelevancePosterior teeth restored with resin composite have been known to exhibit postoperative sensitivity. The type, size and design of the cavity, material properties and handling technique may influence the incidence of this sensitivity. Clinical Researchrestorations (26%), followed by Class II MO/DO (15%) and Class I restorations (5%). At 7, 30 and 90 days after restorative treatment, there was a decrease in the occurrence of sensitivity for all groups. The percentage of sensitivity among the groups was not significantly different. This study shows that the occurrence of sensitivity is correlated with the complexity of the restoration.

Degree of Conversion and Contraction Stress Development of a Resin Composite Irradiated Using Halogen and LED at Two C-factor Levels

“…1 The role of composite polymerization stress as one of the main causes of marginal integrity loss and consequent post-operative occurrences, such as hypersensitivity, microleakage and secondary caries, has been described in some studies. [2][3] Stress magnitude is related to the restorative technique employed, as well as to the composite composition and degree of conversion. One of the factors associated with the restorative procedure is the restoration's bonded-to-unbonded surface area (cavity configuration factor or C-factor).…”

Post-operative sensitivity of Class I, II amalgam and composite resin restorations: Clinical evaluation in an undergraduate program

“…It was noticed in our study that the percentage of POS is more in Class II than Class I cavities but without signifi cant diff erence, that might be related to more removal of tooth structure in Class II and more exposure of the dentinal tubules. Another study [14] also found that POS is more in Class II and it is related to the complexity of the preparation design. In relation to cavity depth and POS, this study shows that POS in deep cavity is more than medium and shallow cavities, that might be the result of pulp injury from deep preparation, and also the diameter of the dentinal tubules near the pulp is more than the diameter near the dentine enamel junction.…”

Dentin hypersensitivity: Pre-hybridization as an alternative treatment

“…This has been one of the most reported clinical problems after the final cementation of indirect restorations [2][3][4]. The dentinal fluid is within the dentinal tubules and contains a great amount of water and odontoblastic processes [5].…”