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Aims: To determine pattern of demand, reasons for root canal treatment (RCT) and survey routine practices of RCT in Lagos State University Teaching Hospital, Ikeja (LASUTH). Methods: A retrospective review of hospital records of patients who had done RCT in Endodontic Unit of Restorative clinic of LASUTH, Lagos State, Nigeria from January 2016 to December 2019. Information on age, gender, ethnicity, tooth treated, indications for treated tooth, obturation techniques, obturation materials, irrigants and intramedicaments used were obtained. Data were analyzed using SPSS Version 23. Results: A total of 231 patients’ records were retrieved. 220 records had complete data, of which 100 (45.4%) males and 120 (54.5%) females. Age range was 18–86 years while mean age was 38.6 ± 1.47. Highest incidence of RCT (24.1%) was found in 30–39 years age group. Commonest indication for RCT was apical periodontitis 145 (58.9%). Total number of teeth treated was 246. Upper central incisors were 56 (22.8%) which were treated most endodontically. More maxillary 176 (71.5%) teeth underwent RCT than 70 (28.5%) mandibular teeth. Step-back technique 226 (92.3%) was the commonest used. Irrigants frequently used were sodium hypochlorite alternating with normal saline 246 (100.0%). More of calcium hydroxide 201 (81.7%) was utilized as canal medicaments. Gutta-percha was solely used as obturation material and endoseal as sealant in this study. Conclusion: Most of endodontic practices done in this study used conventional preparations and obturation techniques. There was need for community dental awareness to prevent and treat early carious lesions.

Aims: To find the correlation between arbitrary surface intercondylar distance on one hand and freeway space, rest vertical dimension, occlusal vertical dimension on the other hand. Methods: A cross sectional study of randomly selected individuals between 18–56 years old, in a tertiary hospital in Ikeja from September- October 2017. Participants were examined and measurements, arbitrary surface intercondylar distance, rest vertical dimension,and occlusal vertical dimension were taken. Data collected were subjected to statistical analysis using SPSS version 20. Level of significance was set at p≤0.05. Results: Of the 48 participants involved in this study, 50% were males. Majority (47.9%) were between 26–35 years old with a mean age of 31 years. Participants in age group 18–25 years and ≥36 years had similar freeway space (FWS) which were 3.43±1.01 mm and 3.45±0.82 mm respectively while 26–35 years old had 3.13±0.87 mm. Mean FWS was 3.29 mm. There was no significant statistical difference in FWS based on gender and age. Spearmans correlation coefficient (R2) analysis revealed a positive correlation of intercondylar distance with freeway space, rest vertical dimension and occlusal vertical dimension. Regression equations were formulated and utilized to calculate concerned parameters. Conclusion: There is correlation between inter condylar distance on one hand and freeway space, rest vertical dimension and occlusal vertical dimension on the other hand. Therefore a regression equation becomes a simple and rapid method of calculating each parameter.

Aims: The current study was designed to determine the frequency of usage of acrylic stock teeth in RPDs using variables such as age, gender, jaw quadrants and jaws respectively. Methods: This random retrospective study reviewed the laboratory cards of 2,266 adult patients who requested for RPDs from the Dental Centre of Lagos State University Teaching Hospital, Ikeja, Lagos, Nigeria. Data on the frequency of usage of stock teeth relative to the sides of each jaw as well as both jaws, age and gender were recorded and analysed. Results: There were 2,774 acrylic partial dentures supplied during the period of study. Males (67.7%) used upper dentures compared to females (59.4%); and more females (40.6%) requested for lower dentures as against 32.3% males. A decline in the number of teeth replaced was seen progressively towards the posterior region of each jaw. No marked difference was seen between the distribution of teeth provided for the right and left sides of each jaw. There were more acrylic stock teeth demanded for the upper jaw compared to the lower jaw. Conclusion: The request for RPDs was more in females than males; though, more use of acrylic stock teeth were seen in males compared to females. There was no marked difference between the distribution of teeth provided for the right and left sides of each jaw. More acrylic teeth were used in the upper jaw compared to the lower jaw.

Coronavirus disease (COVID-19) is a highly infectious disease that poses a threat in dental practice especially in prosthetic clinics due to the peculiar nature of prosthodontic procedures.The aim of this study was to determine the attitude and practices in prosthodontics during COVID-19 period.An online cross-sectional survey was done among dentists practicing prosthodontics across Nigeria.The survey was carried out by sending validated structured self-administered questionnaire to dentists on different social and speciality platforms. The questionnaire was designed into four segments namely socio-demographics, attitude, practice, and preparedness of dental staff towards COVID-19.Data analysis was done using SPSS software program, version 25.0. Statistical significance was established atA total of 123 participants were seen with mean age of 45.20 ± 10.80 years. The specialists (48.0%) constituted the largest group, and the majority of participants were from the southwest (74.8%). Only 27.6% were very eager to perform dental procedures. Majority (64.2%) of the treatment was done by consultation via telephone calls, the use of telephone calls was not associated with age nor gender (The eagerness to perform dental procedures was low and majority of treatment was done by consultation via telephone calls. However, prosthodontic procedure was done by a few of the dentists according to the recommended guidelines for prevention and control.