Introduction This study aims to determine the relationship between chronological age and pulp cavity size and determine which type of tooth has a strong relationship between age and pulp cavity size. Materials and Methods Cone-beam computed tomography images from 200 patients aged between 18 and 55 years were analyzed. The software program (version 2.21) exported the images in the DICOM format, and the MIMICS software program (version 10.01) was used to calculate. The relationship between chronological age and pulp cavity size and determination of which type of tooth strongly relates to age and pulp cavity size were evaluated by Pearson correlation coefficient and Linear regression model. Results A total of 200 patients were included in the study. The minimum age recorded was 18 years, and the maximum period recorded was 55 years. The mean age was 35 years. The relationship between chronological age and pulp cavity size was statistically significant. Maxillary central incisor and mandibular first molar showed a strong relationship between chronological age and pulp cavity size. Conclusions In this study, the pulp cavity size of both maxillary central incisor and mandibular first molar showed a statistically significant correlation with age. The correlation between right and left is strong. So, maxillary central incisor and mandibular first molar is a valuable index for human age estimation with reasonable precision and accuracy.

Objective: The objective of this research was to determine if arthrocentesis for Temporomandibular Joint (TMJ) issues, with or without hyaluronic acid, is an effective treatment. Study Design: A Prospective study Place and Duration: This study was carried out at the Sardar Begum Dental College from January 2022 to June, 2022. Methods: This research included 40 individuals of both sexes with TMJ disc problems. After informed written consent, patients' age, sex, side, and effusion type were examined. Evenly separate patients into two groups. Group I got arthrocentesis in 20 cases and group II got hyaluronic acid in 20 cases. Standard two-needle arthrocentesis was used. Maximum mouth opening, pain reduction, and complications were compared between both groups. Data was analyzed using SPSS 18.0. Results: Pre-treatment, MMO in group I was 29.7±11.37 mm while in group II maximum mouth opening was 30.4±11.61 mm. Post treatment, we found that in group I MMO was 43.9±7.43 mm and in group II 45.6±23.62 mm but did not found any significantly difference after 1.5 years of follow up 40.6±16.28 in group I and 42.7±4.17 mm in group II. Using VAS, pain scores were reduced 1.3±6.87in group I and 0.5±2.3 in group II, with p value 0.001 after treatment. Conclusion: In this research, we found that arthrocentesis was a successful and safe approach for treating disc derangement in the temporomandibular joint (as measured by an increase in MMO and a decrease in pain score), with arthrocentesis utilizing hyaluronic acid showing marginally improved outcomes. Keywords: Arthrocentesis, Pain score, Temporomandibular Joint disc, MMO

Background: Recurrent TMJ (temporomandibular joint) dislocation is a condition characterized by frequent dislocation events. Recurrent TMJ dislocation may be treated using a variety of techniques, including conservative therapy and surgical treatments. Objective: The objective of the study was to assess the effectiveness of treatment of recurrent dislocation of the temporomandibular joint with injection of autologous blood in superior joint space with and without pericapsular tissue Methodology: The current study was prospective was carried out at the Kabir Medical College, Gandhara University, Peshawar for duration of one year from June 2021 to July 2022. The patients were categorized into group A and B, each having 50 patients. In group A patients the autologous blood was injected in superior joint space while in group B, autologous blood was injected in pericapsular tissue. The average reduction in mouth opening was recorded in both the groups. All the data analysis was performed by using IBM SPSS version 23. Results: In group A patients, a mean (±sd) decrease in mouth opening of 3.30 (0.77) mm was observed (p=0.001) while a mean (±sd) decrease in mouth opening of 4.56 (0.72) mm was observed in group B patients (p=0.001). Dislocation recurrence was observed in 4 (57.14%) patients in group A while in group B, dislocation recurrence was observed in 3 (42.86%) patients (p=0.001). Conclusion: Our study concludes that management of recurrent dislocation of TMJ with injection of autologous blood was safe, efficient, simple and economic procedure. Patients with recurrent TMJ dislocation should be encouraged to use autologous blood injection for their treatment. Keywords: Recurrent; Temporomandibular joint dislocation; Autologous blood injection