Objectives: To determine if an association exists between the prevalence of white spot lesions (WSLs) and orthodontic treatment using clear aligners. Methods: Electronic databases were searched with no restrictions on year. Article selection criteria included human clear aligner studies conducted during the permanent dentition and with a full description of the applied technique and oral hygiene status. Results: The search strategy resulted in a total of 4177 articles. After title and abstract screening, 156 relevant articles were identified from which five remained after the application of the exclusion criteria. The articles were mostly classified as having a low risk of bias. Conclusions: Clear aligner therapy induces a lower development rate of new WSLs than orthodontic treatment by fixed appliances. In patients who have poor oral hygiene and/or existing WSLs, clear aligner treatment could be recommended.

Objective: The aim of this cross-sectional study is to determine the orthodontic treatment need and oral health-related quality of life (OHRQoL) in children aged 11-15 and to evaluate the effect of orthodontic treatment need on oral health-related quality of life in different malocclusion groups. Individuals and Methods: 261 children (158 girls, 103 boys) aged 11-15 years (mean 13.03±1.93 years in girls, 12.66±1.75 years in boys) who deserved orthodontic treatment constituted the material of the study. Individuals were divided into 3 groups according to their dental malocclusions as Angle Class I, Class II and Class III. Data collection tools; Index of Orthodontic Treatment Need (IOTN) Dental Health Component (IOTN-DHC), IOTN Aesthetic Component (IOTN-AC), Oral Health Impact Profile-14 (OHIP-14) and Clinical Examination Data Form. OHIP-14 was used to measure OHRQoL. IOTN-DHC and IOTN-AC (orthodontist & self-perception) were used to determine the need for orthodontic treatment. Data were collected through questionnaires, personal interviews, and intraoral examinations. Mann Whitney U test, Kruskal-Wallis test and Kendall tau-b correlation test were used to evaluate the data and the significance level was determined as P0.05). While there was no significant difference between malocclusion groups in terms of OHIP-14 scores, IOTN-DHC scores indicating the need for orthodontic treatment were found to be significantly higher in the Class III malocclusion group (P

Introduction: The aim of this in vitro study was to evaluate the shear bond strength (SBS) and adhesive remnant index (ARI) scores of two different adhesive applications of aesthetic brackets produced from permanent crown material using 3D-printing technology. Methods: Sixty maxillary premolar teeth extracted for orthodontic reasons were divided into two main groups according to the type of bracket (metal brackets n =30, 3D-printed brackets n =30) and further divided into two subgroups according to the type of adhesive (flowable composite, Tokuyama SuperLow; non-flowable composite; 3M Transbond XT). SBS and ARI score evaluations were conducted in the experimental and control subgroups ( n =15). Statistical analysis was performed by a one-way analysis of variance, a post-hoc test, and Fisher’s exact test. Statistical significance was accepted as P < 0.05. Results: The bond strength of the specimens was significantly affected by the type of composite and bracket type ( P < 0.001). However, the SBS values were within or above the desired range for orthodontic treatment in all groups. The highest SBS value was obtained in the Metal Bracket-Transbond XT group (15.03 ± 6.66), while the lowest SBS value was observed in the 3D-Printed Bracket-Transbond XT group (7.91 ± 3.07). It was noted that of all materials evaluated, the most common non-enamel-damaging adhesive–cohesive fractures were in 3D-Printed Bracket Tokuyama SuperLow group ( n =13). Conclusions: It is recommended that 3D-printed orthodontic brackets have sufficient and acceptable SBS levels for clinical applications and bonding using non-flowable adhesives to produce high SBS values and using flowable adhesives generating high ARI scores.

Purpose: This study aimed to evaluate the effect of the absence or presence of third molars on the relapse of mandibular incisor crowding after orthodontic treatment and to determine the indication for prophylactic third molar extraction in orthodontic patients based on Ganss ratios. Material and Method: The study was conducted with the dental models, panoramic and lateral cephalometric radiographs, and intraoral and extraoral photographs of 42 patients (26 females, mean age 16.56±4.96 years; 16 males, mean age 17.52±4.39 years). Data were collected at three time points: before (T1), at the end of (T2), and at least 2 years after the end of orthodontic treatment (T3). The patients were divided into two groups: those with impacted or erupted third molars (Group 1, n=22) and those with agenesis or extracted third molars (Group 2, n=20). Panoramic radiographs were used to determine the presence or absence of third molars at the three time points and to calculate Ganss ratio (GR) (1). Dental models were scanned with the 3 Shape TRIOS oral scanner (3 Shape Co. Copenhagen, Denmark) and mandibular anterior crowding was assessed using Little’s Irregularity Index (LII) (2). Mann-Whitney U test was used to compare mandibular LII values between the groups. GR values of mandibular impacted third molars at T1-T3 were evaluated with repeated-measures ANOVA. Pearson correlation analysis was used to determine the correlation between LII and GR in Group 1. Statistical significance was set at P<0.05. Results: There was no statistically significant difference between the groups in terms of the relapse of mandibular anterior crowding and the presence or absence of mandibular third molars (P=0.940). In Group 1, GR increased significantly at T3 due to an increase in retromolar distance (P<0.05). There was no correlation between LII and GR in Group 1. Conclusion: The presence or absence of mandibular third molars did not affect the relapse of mandibular anterior crowding in orthodontic patients. Prophylactic third molar extraction after orthodontic treatment does not seem necessary.

Objective: The aim of this study was to present a bibliometric analysis of scientific articles about the additive manufacturing technologies in dentistry. Method: The papers published until 24 July 2023, were searched in Web of Science. The top 50 articles with the highest citations and suitable for the study subject were selected among the totally 604 articles. Results: The United States positioned first in the number of articles with a total of 13 articles. Most included articles were published in Journal of Prosthetic Dentistry (n=8), Dental Materials (n=6), Journal of Prosthodontics-Implant Esthetic and Reconstructive Dentistry (n=5), and Materials (n=4). The most cited article was published in 2019 and the number of citations in Web of Science was 194. Conclusion: Additive manufacturing research presents a dynamic environment and is estimated to stay presenting high productivity and broad application in the future dentistry.

Objective: The purpose of this study was to present a bibliometric analysis of scientific articles on clear aligner treatment (CAT) on periodontal health. Materials and Methods: Papers published through July 5, 2023, were searched on the Web of Science (WOS). From a total of 63 papers, the top 25 most cited and appropriate for the study topic were selected. Results: The most cited article with 82 citations was the article published in the European Journal of Orthodontics in 2015. The American Journal of Orthodontics and Dentofacial Orthopedics had the highest publication rate, with three of the top 25 articles published. The first author of the first article was Gabriele Rossini, among the top 25 highly cited articles evaluating the effect of CAT on periodontal health. Italy stands out as the country with the highest number of first authors with 9 articles, followed by China with 7 authors. Conclusions: The bibliometric analysis provides significant information regarding the total number of publications and citations on clear aligner treatment on periodontal health. This bibliometric analysis provides a perspective on the progress of research on clear aligner treatment on periodontal health.