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BACKGROUND: Dental implantology is continually evolving in its quest to discover new biomaterials to improve dental implant success rates. The study explored the potential of innovative biomaterials for dental implant surfaces, including titanium-zirconium (Ti-Zr) alloy, hydroxyapatite-coated titanium (HA-Ti), and porous polyetheretherketone (PEEK), in comparison to conventional commercially pure titanium (CP Ti). MATERIALS AND METHODS: A total of 186 samples were harvested for the analysis. Biomaterials were thoroughly evaluated in terms of surface topography, chemical composition, biocompatibility, mechanical properties, osseointegration performance, and bacterial adhesion. Study methods and techniques included scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), cell culture variants, tensile tests, hardness measurements, histological analysis, and microbiological testing. RESULTS: Surface topography examination showed significant disparities between the biomaterials: Ti-Zr had a better roughness of 1.23 µm, while HA-Ti demonstrated a smoother surface at 0.98 µm. Chemical composition evaluation indicated the presence of a Ti-Zr alloy in Ti-Zr, calcium-phosphorus richness in HA-Ti, and high titanium amounts in CP Ti. The mechanical properties assessment showed that Ti-Zr and CP Ti had good tensile strengths of 750 MPa and 320 HV. In addition, bacterial adhesion tests showed low propensities for Ti-Zr and HA-Ti at 1200 and 800 cfu/cm2, respectively. CONCLUSION: Ti-Zr and HA-Ti performed better than the other biomaterials in surface topography and mechanical properties and against bacterial adhesion. This study emphasizes that multi-parameter analysis is critical for clinical decision-making, allowing for the selection of the currently available biomaterial, which could be conducive to the long-term success of the implant.
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OBJECTIVE: This study aimed to comprehensively analyze the microbiome of dental plaque in individuals with varying periodontal statuses, encompassing both periodontal health and disease. The primary objectives were to identify microbial markers associated with different clinical conditions, explore variations in microbial diversity, and investigate potential correlations between the oral microbiome and clinical parameters. METHODS: A cross-sectional design was employed, involving 164 participants aged 18 to 65 years. Inclusion criteria comprised individuals with good oral and systemic health for the periodontal health group and those diagnosed with various stages of periodontal disease for the periodontal disease group. Dental plaque samples were meticulously collected from diverse tooth surfaces, and clinical examinations were conducted to assess periodontal health status. High-throughput sequencing of the 16S ribosomal RNA (rRNA) gene was utilized for microbiome analysis. RESULTS: Demographic characteristics revealed a balanced distribution between the periodontal health and disease groups. Clinical parameters, including probing depth, clinical attachment loss, and bleeding on probing, exhibited significant differences between the two groups (p < 0.001). Microbial diversity indices indicated a higher diversity in the periodontal health group compared to the disease group (p < 0.001). Analysis of relative abundance of bacterial phyla identified significant variations, with Firmicutes, Bacteroidetes, and Actinobacteria showing differential prevalence between health and disease (p < 0.05). Differentially abundant taxa analysis highlighted specific species associated with each clinical condition, including Prevotella intermedia and Porphyromonas gingivalis. Network analysis revealed complex microbial interactions within the oral microbiome. Functional predictions indicated variations in metabolic capabilities between health and disease, with potential implications for virulence and antibiotic resistance. CONCLUSION: This study provides a comprehensive analysis of the oral microbiome in periodontal health and disease, revealing significant associations between microbial composition and clinical parameters. The identification of microbial markers and functional insights enhances our understanding of the complex interplay within the oral ecosystem. These findings hold promise for advancing diagnostic and therapeutic approaches tailored to individual microbial profiles.
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The present case report illustrates a rare occurrence of multiple dental anomalies in a healthy 12-year-old patient including anomalies of shape and number of teeth. The developmental dental anomalies noticed in the present case scenario are dens invaginatus, taurodontism, radix entomolaris, supernumerary teeth, and pulp stones seen in multiple teeth. It is not rare to notice these anomalies individually, but their combination is rare in a single, non-syndromic patient. This report also signifies the importance of thorough extra-intra-oral and radiographic examinations of patients with dental anomalies.
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Background: Age estimation is an essential part of forensic odontology and many methods are available with variable accuracy. However, the research is going on to find the simple and most reliable method. Objectives: By measuring the length and area of root dentin translucency in extracted tooth specimens manually and digitally, and comparing them, this study aims to find the most reliable technique of age assessment. Materials and Methods: One-hundred and twenty-five single-rooted extracted human permanent teeth were selected for the study. In both unsectioned and sectioned teeth, the total length of root dentin translucency was manually measured using a digital vernier caliper. Then, in a ground-sectioned tooth specimen, the total length and area of root dentin translucency were measured digitally using a scanner scale and computer software. Both the methods were compared. Results: In both manual and digital approaches, the length and area of root dentin translucency grew with age, from younger to older age groups. On comparing the measurements, the correlation coefficient was somewhat higher for digital area measurements than other measurements (r = 0.985). Conclusion: The digital technique outperforms the traditional way for calculating age, and furthermore, measuring the area in the digital method for age estimation has shown to be more accurate.
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Introduction: In this study, we investigated the success rate of growth factors for existing periapical lesions in failed endodontically treated teeth in an adult population by systematic review and meta-analysis. Materials and Methods: We conducted an online data search based on preferred reporting items for systematic reviews and meta analyses (PRISMA), from databases PUBMED, MEDLINE, and EMBASE, for the application of various types of growth factors in endodontically failed teeth with periapical lesions in adults. These included the "platelet-rich plasma (PRP) and platelet-rich fibrin (PRF)," blood, etc. The data were meta-analyzed using MetaXL 5.3, and GRADE was used to assess the certainty. Results: We observed that success of 0.95 was achieved by the end of a year's follow-up with the application of growth factors for periodontal lesions. We also observed that the teeth responded to thermal tests, indicating regeneration; however, studies were with bias and lower sensitivity. Discussion: \ Similar to regeneration in immature teeth, growth factors also showed greater success in the treatment of periapical lesions in the failed endodontic teeth in adults.