Incidence Of Tooth Sensitivity Research Articles

Use of Nanocomposite Resin Materials for Dental Restoration in Elderly Patients

Tooth defects can affect not only periodontal tissue but also the whole body if not restored in good time. Composite resin materials are commonly used filling materials in dental restorations, but they have low material strength and are likely to cause insufficient secondary caries. Improving the ability of composite resin materials to restore defective teeth has thus become the focus of research interest. Nanocomposite materials are widely used in dentistry because of their good design characteristics, wide indications, strong restorative power, and high economic efficiency. However, whether they cause respiratory tract inflammation or tissue damage due to their large specific surface area still needs further investigation. This study compared the effects of nanocomposite resin materials with those of traditional light-curable composite resin materials on the restoration of dental defects in elderly patients and found that nanomaterials could not only reduce the incidence of tooth sensitivity and tooth pain after restoration but also improve the aesthetic outcomes of the tooth. In addition to the restoration effect, the occurrence of adverse reactions in patients who underwent dental restoration using nanomaterials within 2 years after the procedure was significantly lower than that in patients who underwent dental restoration using traditional materials. These results indicate that the nanocomposite resin material improved the restoration effect in elderly patients without increasing their risk for adverse reactions. Therefore, nanocomposite resin materials should be used as the preferred filling material for dental restoration in elderly patients with dental defects.

Clinical evaluation of two bleaching regimens

Objectives Evaluate the color regression, postoperative sensitivity, and patient's satisfaction after bleaching with different regimens over a period of 1 year clinical service. Participants and methods Twenty highly educated adolescents (age range: 18–25 years) seeking for better esthetics were enrolled into the study. Their teeth shade was A3 or darker. Participants were enrolled in a split mouth study design divided into four groups according to bleaching materials and/or desensitizer used. Groupgroup I: right mandibular anterior teeth will receive over-the-counter (OTC) bleaching material followed by desensitizer application. Group II: left mandibular anterior teeth will receive OTC bleaching material. Group III: right maxillary anterior teeth will receive in-office bleaching material followed by desensitizer usage. Group IV: left maxillary anterior teeth will receive in-office bleaching material. The color change, teeth sensitivity and patient's satisfaction were recorded along the evaluation periods at baseline, before any treatment, directly after bleaching, and in 3 months intervals for a year postoperatively. Results One-way repeated measure analysis of variance test was performed to investigate the effect of time on the color change for each tested group. A highly significant difference was recorded regarding the color change for all tested groups with P value equals 0.000. Considerable postoperative sensitivity was recorded in 13.3, 36.7, 1.7, and 30% for group I, II, III, IV, respectively. Treatments were generally well-tolerated, a percentage of zero (n = 0) patient terminated the treatment prematurely. There was no postoperative hypersensitivity at any tooth after 3, 6, 9, and 12 months evaluation periods. Additionally, after 1 year evaluation periods, five (25%) patients recorded moderately satisfaction, nine (45%) patients were satisfied, and six (30%) patients were extremely satisfied with their teeth color. Conclusion and recommendations The degree of whitening is superior in the power bleaching compared with the OTC bleaching technique. The higher incidence of tooth sensitivity was found in teeth bleached using OTC technique. It is recommended that over-the-counter products should be used under strict manufacturer's directions.

Incidence of tooth sensitivity after resin composite class III restoration with flowable composite as liner

Resin composites is one of the currently most frequently used aesthetic restoration material. A drawback of resin composites is contraction of polimerization which may result in the coming about of dental sensitivity due to microleakage. Flowable composite has high flow capacity and better adaptation capability making the thinnest application on cavity surfaces. An advantage of flowable composite is the possibility of using it as liner in composite resin restoration, which is expected to minimize the occurrence of post restoration dental sensitivity. This research was a descriptive research using the purposive sampling technique. The sample consisted of 27 first incisive and/or second incisive permanent maxilla teeth. A sensitivity test was used on the sample using chlor ethyl and completing questionnaire by patients. The result of dental sensitivity test indicated that 88.9% of the patients did not experience post restoration dental sensitivity and 11.1% of the patients was experience a decrease of dental sensitivity level. Based on research results the conclusion could be drawn that the used of flowable composite as a liner in resin composite class III restoration didn't had a post restoration dental sensitivity.