The purpose of this study was to evaluate the clinical outcome of feldspathic ceramic laminate veneers over a 7-year period using minimally invasive techniques, such as vertical preparation (without prosthetic finish line), or no preparation (no-prep). A total of 170 feldspathic ceramic veneers were cemented in the anterior region, including 70 maxillary and 100 mandibular veneers, after special conditioning of the teeth and restorations. The veneers were evaluated using the FDI World Dental Federation criteria evaluation kit after recalling all the patients between February and June 2021. In total, 14 feldspathic veneers failed and were replaced with lithium disilicate because of core fracture, and 10 cases of chipping occurred on the ceramic surface and were polished. The overall survival rate was 91.77% for up to 7 years of function, with a failure rate of 8.23%. In this retrospective survival analysis, the failures, including the fracture of veneers and dental hard tissue, occurred both in prep and no-prep teeth. No failures were observed in veneers with a maximum thickness of 0.5 mm compared to those with a maximum thickness of 1 mm, 1.5 mm, 2 mm, and 2.5 mm.

Background and Objectives: This five-year retrospective study evaluated the survival and clinical performance of 1143 zirconium oxide restorations, including both monolithic (144) and layered (999) restorations. Materials and Methods: The analysis included clinical records and follow-up data of patients treated with zirconium oxide restorations. Failures in layered restorations were examined, particularly focusing on chipping caused by unsupported feldspathic ceramic exceeding 1.5 mm. Monolithic restorations were used as a benchmark for durability. Results: The results demonstrated a high overall survival rate of 96.3%, with monolithic restorations achieving a perfect survival rate of 100%, while layered restorations had a survival rate of 95.8%. Failures in the layered restorations were primarily associated with chipping, especially when the unsupported feldspathic ceramic exceeded 1.5 mm. Conclusions: This finding highlights the importance of maintaining adequate support for the ceramic layer to prevent such complications. Monolithic restorations, in contrast, showed superior durability, with no failures reported, making them a more reliable option for long-term success. These findings emphasize the need for the careful selection of zirconium oxide restoration types based on the clinical context, particularly in cases where durability is critical.

Objectives: This study aimed to evaluate patients’ satisfaction with the esthetic outcomes of combined endodontic and prosthetic treatments for devitalized or dyschromic teeth, a condition influenced by various intrinsic and extrinsic factors that present a growing concern in modern dentistry. Methods: A total of 104 patients, including 43 men and 61 women, underwent treatment using lithium disilicate restorations for esthetic zones and zirconium oxide restorations for regions with higher occlusal demands. Patient satisfaction was evaluated through a post-treatment questionnaire, classifying responses as either “satisfied” or “dissatisfied”. Dissatisfied participants were further asked to specify their concerns. Results: The study revealed a high satisfaction rate of 93%. Dissatisfaction was slightly more prevalent among women than men, but this difference was statistically insignificant. The primary reasons for dissatisfaction included darker restoration color, chipping, and gingival recessions. Conclusions: Combined endodontic and prosthetic treatments, utilizing lithium disilicate and zirconium oxide restorations, achieved high levels of patient satisfaction. Nevertheless, addressing specific issues, such as color matching and gingival health, could enhance outcomes further.

Background and objectives: Orthognathic surgery aims to correct dentofacial deformities and improve both function and facial esthetics. This study assessed long-term patient satisfaction and complication rates following bimaxillary orthognathic surgery, using a customized questionnaire to evaluate esthetic, functional, and psychosocial outcomes. Materials and methods: A total of 126 patients who underwent bimaxillary surgery for Class II or III dentofacial deformities were included in this retrospective cohort study with prospectively collected data and evaluated after a minimum follow-up of 3 years. Surgical procedures included Le Fort I osteotomy, bilateral sagittal split osteotomy, multisegmental osteotomies, genioplasty, and SARPE, with all cases planned and managed by an interdisciplinary team. Patient satisfaction was assessed using a 20-item individualized questionnaire based on validated tools (OQLQ, DAS-59, OHIP-14, VAS). Results: High levels of long-term satisfaction were reported, particularly in smile appearance and self-confidence. Smile-specific satisfaction remained stable regardless of skeletal class, gender, or complications. Postoperative complications occurred in 11.1% of patients and represented the main observed factor significantly associated with reduced overall satisfaction (p < 0.001). The most frequent complications included mandibular plate infection (n = 5), mandibular osteoperiostitis (n = 4), plate detachment (n = 2), plate fracture (n = 1), pseudoarthrosis (n = 1), and malunion with vicious callus (n = 1). All were successfully managed without long-term sequelae. Conclusions: Orthognathic surgery provides consistent long-term esthetic and psychosocial benefits. Individualized planning, interdisciplinary management, and the use of a customized satisfaction questionnaire may have contributed to the favorable patient-reported outcomes observed. These findings support the role of orthognathic surgery in enhancing quality of life beyond skeletal correction.

Background: This prospective clinical study aimed to evaluate the effectiveness of platelet-rich fibrin (PRF) in guided bone regeneration (GBR) prior to dental implant placement. Material and methods: Sixty-five patients with alveolar bone defects were randomly assigned to three groups. All groups received a composite graft consisting of 70% allograft and 30% xenograft. Group A received the graft combined with PRF. Group B received the graft with PRF and a resorbable collagen membrane. Group C (control) received the same graft and membrane without PRF. Cone-beam computed tomography (CBCT) was used to assess bone regeneration at baseline and 6 months postoperatively. Implant stability was evaluated using ISQ values at the time of implant placement (6 months after grafting) and again at 3 to 4 months during the second-stage uncovering procedure. Soft tissue healing, postoperative complications, and pain scores were also recorded. Results: Group B showed the best outcomes, with the highest mean vertical bone gain (3.0 ± 0.4 mm), greatest implant stability (ISQ: 74.2 ± 1.8), and no complications. Group A achieved moderate bone gain (2.3 ± 0.4 mm) and good ISQ values (71.5 ± 2.3), with favorable soft tissue healing. In contrast, Group C had the lowest bone gain (2.1 ± 0.5 mm), reduced ISQ values (68.9 ± 2.9), and the highest incidence of complications, including dehiscence and minor infections. Conclusions: These results suggest that PRF enhances both hard and soft tissue regeneration, particularly when used with grafts and membranes. PRF may reduce healing time and postoperative discomfort, improving the overall success of regenerative implant procedures.

This study investigates the survival rates and failure modes of layered lithium disilicate restorations with feldspathic ceramic layering, observing a total of 546 restorations across 62 patients, evenly distributed by gender (31 males and 31 females), over an average follow-up period of 52.1 months. The findings reveal an impressive overall survival rate of 97.6%, with 13 failures identified, predominantly fractures (8 cases), followed by debonding (2 cases) and dyschromia (2 cases). Kaplan-Meier analysis demonstrated no statistically significant differences in survival rates between male and female patients (Log Rank Test, p=0.877), although males exhibited a marginally longer mean survival time. These results correspond with existing literature that emphasizes the prevalence of fractures in layered restorations, particularly in high-stress areas. The study suggests that careful consideration of clinical factors is essential for optimizing the performance of these restorations. Future research should focus on exploring various restoration designs and conducting prospective studies in standardized settings to validate these findings and improve clinical protocols.