Endodontic management of pulp canal obliteration using a new single-tooth template: A case series.

Background: Guided Endodontics is suggested as a reliable method for management of teeth with pulp canal obliteration (PCO). The guide used for this usually involves multiple teeth to gain stability but is bulky. It is therefore suboptimal to be used along with rubber dam. Aim: To describe the use of a minimized single-tooth guide template in three patients with radiographic evidence of PCO. Design: The template was designed and fabricated using the cone-beam computed tomography (CBCT) scan and a surface scan image of the involved teeth. In all three patients, the root canals were successfully negotiated within 15 minutes, with the template involving only the tooth in focus or with neighboring half of the teeth. The operator stabilized the template if required. Conclusions: This case series shows clinically that successful outcome can be obtained during guided endodontics with the use of a single-tooth template in previously traumatized anterior teeth with PCO.

Effect of preoperative oral administration of steroids in comparison to an anti-inflammatory drug on postoperative pain following single-visit root canal treatment - a double-blind, randomized clinical trial.

AIM: This randomized, double-blinded, clinical trial evaluated the effect of oral premedication of piroxicam, prednisolone, dexamethasone or placebo on postoperative pain after single-visit root canal treatment in teeth with symptomatic irreversible pulpitis and symptomatic apical periodontitis. METHODOLOGY: The trial is reported according to the Preferred Reporting Items for RAndomized Trials in Endodontics (PRIRATE) 2020 guidelines. The protocol was registered at the clinical trial registry (India) (CTRI/2019/06/019818). In total, 160 patients, assigned to four groups, received orally either 20 mg piroxicam, 20 mg prednisolone, 4 mg dexamethasone or a placebo 60 min before root canal treatment. Patients recorded their postoperative pain intensity at 6, 12, 24, 48 and 72 h using a 10-cm visual analogue scale. Intergroup comparison was performed using Kruskal-Wallis tests with post hoc analysis using Dunns test. Incidence of pain was analysed using chi-square tests. A P value < 0.05 was considered to be statistically significant. Binary logistic regression was used to determine the odds of postoperative pain, with incidence of pain as the dependent variable and intervention groups, gender, age and type of tooth as independent variables. RESULTS: In total, 156 patients were analysed in the trial, since four patients dropped out during follow-up. All drugs were associated with a significantly lower incidence of postoperative pain compared to the placebo at 6 h (P = 0.009), 12 h (P = 0.003) and 24 h (P = 0.008). Mean intensity of pain was significantly more intense at 6, 12 and 24 h with the use of placebo in comparison to the other three intervention groups (P < 0.05). Intensity of pain was not significantly different between the premedications used (P > 0.05). One patient in the piroxicam group reported gastritis, whereas no adverse effects were recorded in other groups. CONCLUSION: Preoperative oral administration of a single dose of 4 mg dexamethasone, 20 mg piroxicam or 20 mg prednisolone reduced the incidence and severity of postoperative pain following single-visit root canal treatment compared to a placebo in patients with symptomatic irreversible pulpitis and symptomatic apical periodontitis up to 24 h. The odds of postoperative pain at 24 h for patients premedicated with 4 mg dexamethasone or 20 mg piroxicam or 20 mg prednisolone were 5.3 times, 3.4 times and 2.5 times less compared to the placebo, respectively.

Management of short clinical crowns by utilizing horizontal groove retentive technique in crown/tooth or both with different luting cements - An analysis on extracted teeth.

PURPOSE: The aim of the present study was to compare and evaluate the retention of dislodged crowns by addition of one horizontal circumferential groove (HCG) to preparation and/or casting and with two luting cements. MATERIALS AND METHODS: A total of 80 recently extracted human maxillary first molar teeth of appropriate sizes were collected and mounted in the resin blocks using surveyor. Standardized full coverage tooth preparations were prepared and impressions were obtained. Dies were prepared for casting and were then subjected to tensile loading using UTM. The data obtained was statistically analyzed. RESULTS: Obtained values were statistically analyzed using ANOVA, STUDENT "t" TEST and BONFERRONI TEST. The results showed that the mean tensile force (TF) was in the range from 49.05 to 264.87 for group A and 255.06 to 588.60 for group B. The highest TF was recorded for subgroup 3B, whereas the lowest for subgroup 1A. CONCLUSION: Within the limitations of the study, it was concluded that by addition of one HCG to tooth preparation or casting and to both showed significant increase in retention, when compared to control groups. The highest retention value was obtained for sample with groove on the internal surface of crown luted with SARC.

Evaluation of esthetics of incisor position in relation to incisive papilla to replicate in the denture prosthesis.

BACKGROUND: The distance between the central incisor to incisive papilla (CI-IP) is constant and regarded as one of the landmarks for the placement of artificial teeth in the prosthesis. Earlier studies were done in relation to anterior border of papilla but after extraction the incisive papilla recedes changing the position of anterior border. MATERIALS AND METHODS: In this study, 100 dentulous subjects were divided into two groups (males and females) with 50 in each group. Maxillary alginate impressions were made and base poured using levelling instrument to standardize all casts and surveyed on the surveyor for uniformity of the casts. The measured distances were analyzed using Student t-test analysis. RESULTS: The ovoid arch was the commonest arch form found in both males and females with slightly more prevalent in females. Analysis was done using Student t-test analysis and found that the mean distance from CI-IP was found to be at 12.85 mm and 12.39 mm in males and females, respectively. CONCLUSION: When square arch form (both male and female) mean CI-IP was compared with the total sample mean CI-IP, the mean CI-IP of square arch form was less than that of total sample with greater significance (P < 0.05). When ovoid arch form (both male and female) mean CI-IP was compared with the square arch form (both male and female) mean CI-IP, the mean CI-IP of ovoid arch form was greater than that of square arch form with greatest significance (P = 0).