The aim of the present study was to evaluate the fracture loads of polymethyl methacrylate (PMMA) complete denture bases reinforced with glass-fiber mesh and orthopedic casting tape (OCT) in comparison to conventional PMMA dentures under artificial aging. Dental fiberglass framework (Group 1) and OCT (Group 2 and 3) reinforced PMMA acrylic dentures were fabricated on the edentulous ridge. Ten PMMA dentures without reinforcement (Group 4) were included as controls. All specimens were placed in a chewing simulator chamber, and fatigue load was applied. To assess the fracture loads, static loads with a universal testing machine were applied. Fractured specimens in each group were evaluated under a scanning electron microscope. The data were statistically analyzed employing analysis of variance and Tukey post-hoc test. The association of denture weight and thickness on fracture load was assessed using Pearson and Spearman correlations. Dental fiberglass (Group 1) displayed the highest fracture load (692.33 ± 751.41 N), and Group 4 (control) exhibited the lowest fracture loads (281.41 ± 302.51 N). Dentures reinforced with fiberglass mesh framework exhibited intact fractures. In contrast, Group 2 and 3 specimens using OCT demonstrated ditching fractures. It was observed that the thickness and weight of all the reinforced specimens influenced the load required to fracture the dentures (p < 0.001). Denture specimens strengthened with OCT (Groups 2 and 3) exhibited failure loads lower than dental fiberglass (Group 1) specimens but higher than unreinforced controls.

This in vitro study aimed to compare the fracture resistance between pressed custom-made polyetheretherketone (PEEK) post and core and fibre reinforced post and composite core. A total of 40 single rooted extracted teeth were selected, endodontically treated, and prepared to receive the posts. Specimens were randomly divided into two main groups (n=20/group): group 1, (PEEK); group 2, fibre post. PEEK post was manufactured with a computer-aided design/computer-aided manufacturing system further divided into four sub groups (P7, P12, F7, F12) based on lengths 7 and 12 mm at which the posts were cemented. All posts were cemented with self-adhesive resin cement, and specimens were stored in 0.1% thymol solution during the experiment at all the times except during preparation and testing. A universal testing machine was used to measure the fracture resistance. The fracture resistance values (mean and SD, in newtons) were 1255N (P7), 1562N (P12), 1065N (F7), and 1384N (F12). Only P12 exhibited a significant difference (p,0.05). The turkey test showed an association between failure mode and post and- core material. In the remaining groups, most failures were nonrepairable and related to fracture. Customized post-and-cores of PEEK exhibited good mechanical performance. Their fracture resistance was comparable to that observed for fibre posts.

Background and Objective: Gingival biotype can be assessed using a variety of invasive and non-invasive procedures, such as direct probing, transgingival probing, ultrasound-guided approaches, and, for the more sophisticated, cone-beam computed tomography. The aim of this study was to evaluate gingival biotype in relation to transgingival probing and cone-beam computed tomography (CBCT). Materials and Methods: This study included a total of two hundred healthy individuals. Gingival thickness was assessed and measured from the right and left maxillary central incisor teeth using CBCT and transgingival probing of the attached gingiva. The measurements were analyzed with regard to tooth type (central incisor). Linear measurements for gingival biotype were measured using both methods. Correlations and differences between measurement methods were assessed. Results: The mean age of study participants was 32.49 ± 8.61 years. The radiographic measurements on CBCT were 1.34 ± 0.17 mm for the right central and 1.28 ± 0.21mm for the left central. The transgingival probing measurements were 1.31 ± 0.18 for the right central and 1.22 ± 0.21mm for the left central. Conclusion: As per the results of this study, there is a significant positive correlation between transgingival probing and CBCT measurements of gingival biotypes.

The oral health-related quality of life determines the quantity to which oral health disrupts the regular life and common functioning of an individual. To evaluate the oral health problems of older adults, Geriatric Oral Health Assessment Index (GOHAI) can be used. GOHAI was developed by Atchinson and Dolan3 before and after complete denture therapy”. Study Design: Cross sectional study. Setting: Department of Prosthodontics, Lahore Medical and Dental College, Lahore. Period: February 18, 2018 to August 17, 2018. Material & Methods: Patients will be selected for the study according to the criteria. Patient history and clinical examination was undertaken. Upper and lower complete dentures was made-up for 30 patients (both male and female) using standardized clinical and laboratory methods. Conventional procedures were applied to complete denture construction. Complete dentures were constructed in the similar dental laboratory within the institution by compression moulding method. Laboratory and clinical remount procedures, beside with occlusal corrections were carried out using a semi-adjustable articulator. The GOHAI questionnaire was completed on two different appointments. First questionnaire was documented before denture insertion and second questionnaire was recorded after complete denture insertion. Results: Before treatment mean GOHAI score was 20.46 ± 2.85 and after treatment mean GOHAI score was improved and was 26.32 ± 2.34. The mean GOHAI score was statistically improved p-value < 0.001. For male patients, before treatment mean GOHAI score was 21.61 ± 2.59 and after treatment mean GOHAI score was improved and was 26.31±2.14. The mean GOHAI score was statistically improved in male patient, p-value < 0.001.  For female, before treatment mean GOHAI score was 19.34 ± 2.70 and after treatment mean GOHAI score was improved and was 26.44 ± 2.49. The mean GOHAI score was statistically improved in female patients, p-value < 0.001. Conclusion: According to patient’s information enhancement in functional changes after placement of complete dentures.

No abstract