Objectives: This cohort study examines the relationship between quality of life and oral health in adolescents and young adults in the Zagreb area. Methods: The research involved 250 participants aged 14 to 25 from Zagreb. Each participant was examined by an oral medicine doctor using a probe and mirror in a dental unit, and their DMFT (Decayed, Missing, and Filled Teeth) status was determined. Participants also completed questionnaires on their socio-economic status (SES) and the impact of their oral health on quality of life (OHIP-14, Oral Health Impact Profile). Results: Caries was the most common dental issue among adolescents (2.23 ± 2.58), with restoration being the most frequent treatment (54%). Endodontic treatment and tooth extraction were more prevalent among individuals with lower SES (24.1%), who also had worse DMFT scores (8.09 ± 5.56). Prophylaxis was equally distributed across SES and gender. Male patients had more carious teeth (2.75 ± 3.07) than female patients (1.85 ± 2.08), while female patients scored worse on the OHIP-14 scale (10.97 ± 8.77) compared to males (8.81 ± 8.11). Age positively correlated with both OHIP-14 and DMFT scores. Conclusions: Adolescents and young adults in Zagreb, Croatia, exhibited high DMFT and OHIP-14 scores, reflecting significant oral health issues and reduced quality of life, particularly among older individuals and those with lower SES. The association between invasive treatments (e.g., endodontic procedures and extractions) and diminished quality of life underscores the necessity for early preventive measures, including regular dental check-ups and targeted oral health education.

Background/Objectives: Conservative options for single-tooth replacements in the anterior region include all-ceramic one-retainer resin-bonded fixed dental prostheses (RBFDPs) and three-unit fixed partial dentures (FPDs). Methods: This systematic review assessed their clinical outcomes. Following the PRISMA 2020 guidelines, an electronic search of MEDLINE/PubMed was conducted from November 1991 to March 2025 for randomized clinical trials (RCTs), prospective cohort studies (PCSs), and retrospective cohort studies (RCSs). Keywords included dental prosthesis, fixed prosthesis, resin-bonded prosthesis, single-tooth replacement, anterior teeth, all-ceramic, lithium disilicate, monolithic, zirconia, survival rate, and success rate. Failures and complications were analyzed to determine long-term outcomes. Results: The search identified 990 articles, and the full-text review of 54 articles was performed, resulting in 23 studies meeting the inclusion criteria. This review revealed that one-retainer RBFDPs and three-unit FPDs in the anterior region demonstrated high survival and success rates. However, debonding was a common complication in RBFDPs, while framework design issues were noted in FPDs. Conclusions: These outcomes highlight the reliability of both approaches as conservative, all-ceramic, prosthodontic interventions for anterior single-tooth replacements. The consideration of one-retainer RBFDPs and three-unit FPDs is advisable due to their favorable clinical performance and minimal invasiveness.