Baris Can Telatar

Objectives: The objective of this study is to reveal the morphometric characteristics of the mandibular ramus area and mandibular foramen in non-growing patients with different vertical facial types and clinically balanced skeletal pattern in sagittal direction. Materials and Methods: Sixty adult patients were divided into three groups by FMA angle. Groups were created as 20 high-angle (HA), 20 normal-angle (NA) and 20 low-angle (LA). Mandibular foramen location (MFL), mandibular foramen width (MFW), ramus height and ramus width were determined using CBCT images. Results: In the LA group, MFL was observed to be closest to the mandibular notch, and furthest from the posterior border of the ramus on both sides (p

Aim: Polyethylene terephthalate glycol (PET-G) materials are frequently used in dental practice. Most vacuum formed retainers (VFRs) and trays for bleaching agents are made from PET-G materials. The aim of this in vitro study was to evaluate the color stability of different branded VFRs, made from PET-G material, in various beverages. Materials and Methods: Two different PET-G materials, Atmos (American Orthodontics, Washington, USA) and Duran (Scheu Dental, Iserlohn, Germany) were tested after thermoforming over a metal casting model of 15 mm diameter and 6 mm height for color stability. Ten samples from each brand were immersed in four different beverages (water, tea, coffee, and coke), and a total of 80 samples were evaluated on the 7th and 14th days using a spectrophotometer. Color changes were evaluated based on the L*,a*,b* color system, according to Commission Internationale de l'Eclairage (CIE). One-way ANOVA was used for ∆E. Student’s t-test and Bonferroni tests were applied to compare the variables. The level of statistical significance was set at P < .05 Results: There were statistically significant differences between Atmos and Duran. (P < .001). Duran showed significant color changes with tea, coffee, and water (p< 0.05) while Atmos were more resistant to discoloration. Conclusion: It was observed that different PET-G materials showed varying performance against discoloration. Duran was more prone to discoloration compared with Atmos. Tea had the greatest discoloration effect on all groups.

Objectives: To examine the amount of residual monomer released from adhesive-precoated flash-free brackets and compare it to traditional light cure and chemical cure adhesives. Materials and methods: Sixty stainless steel brackets were bonded on upper premolar teeth using three groups of adhesive systems: Adhesive-precoated flash-free system, Transbond XT light cure, Sia chemical cure. The extracts of 0.5 ml of liquid samples were taken on the first, 7th, 21st, and 35th days. To determine the amount of residual monomer release, extracted samples were analyzed using a liquid chromatography device. Results: Urethane-dimethacrylate, triethylene glycol dimethacrylate, hydroxyethyl methacrylate and Bisphenol A-glycidyl methacrylate monomers were released from all study groups. The amount of total monomer release except hydroxyethyl methacrylate was detected as greater in adhesive-precoated flash-free system. Among the study groups, the chemical cure group showed the highest hydroxyethyl methacrylate monomer release. Conclusions: This in vitro study indicate that the APC flashless system exhibited the greatest release of residual monomers, suggesting that its possible cytotoxic effects need to be evaluated prior to clinical application. Clinical relevance: This is the first study that evaluates the residual monomer release from adhesive-precoated flash-free brackets. The novel bracket system has a different mesh structure at the bracket base compared to traditional systems with different chemical components which might alter the amount of residual monomer release. To investigate the harmful effects of adhesives used in orthodontic applications is very important for the health of the patient and the orthodontist.

Objective: The aim of this study was to examine and evaluate the form of filaments of four manuel orthodontic toothbrushes by stereomicroscope analysis. The existing literature lacks findings on the end morphology of orthodontic toothbrush bristles. Material and Methods: Eight samples from four different orthodontic toothbrush brands (Glimo Orthodontic Oral Care, Pearldent Ortho, Tepe Implant Orthodontic, Curoprox Ortho) were collected. After determining tuft numbers, two tufts from each toothrush head from the opposite sides collected by using a carbon disk and filaments from each sample were attached on a bristle paper with transparent tape. A total of 16 tufts were independently evaluated by an observer using a stereomicroscope (Zeiss Stemi 508, Germany) at 8x magnification. Bristle end morphologies were classified as acceptable and non-acceptable according to the Silverstone and Featherstone scale. Pearson's chi-square test was employed to analyze differences between toothbrush types. In instances where the estimated values did not reach sufficient levels, Monte Carlo simulation was used. The level of statistical significance was set at 0.05. Results: The bristle ends morphologies of Glimo and Pearldent toothbrushes were found to be 100% non-acceptable. There was a significant difference between toothbrush brands in terms of the distribution of bristle tip morphologies. (p=0.000). Specifically, 75.6% of Tepe brand filaments were deemed acceptable, while Curaprox exhibited an acceptable filament percentage of 48.2%. Conclusion: Among the evaluated toothbrush brands, Tepe emerged as the most acceptable orthodontic toothbrush, with 75.6% of filaments meeting the acceptable criteria. Conversely, Glimo and Pearldent displayed no acceptable bristle tip morphology.

Baris Can Telatar, Gul Yildiz Telatar, Faruk Saydam. Korean J Orthod 2023;53:336-42. https://doi.org/10.4041/kjod23.129

Orthodontic appliances in the oral cavity may cause problems such as white spot lesions, dental plaque, periodontal disease and root resorption. The aim of this study was to investigate the association between orthodontic treatment and oral health parameters including visible dental plaque, gingival recession and white spot lesions (WSLs). A total of 170 patients (86 females, 84 males) were randomly selected to determine visible dental plaque, gingival recession and white spot lesions by using pre-treatment and post-treatment oral photographs. Except of previously extracted teeth, maxillary and mandibular incisors, canine, 1st and 2nd premolars and 1st molar were evaluated. There was a significant difference between the T0 (before treatment) and T1 (after treatment) groups in visible plaque (P< 0.001). The distribution of gingival recession frequencies according to Miller classification before treatment did not differ from the after treatment (P=.082). A statistically significant increase in the severity of WSL was detected between the two time points (P< 0.001). Males have been shown to have higher WSL incidence after treatment. In conclusion, the present study showed that visible dental plaque and white spot lesions significant increase after orthodontic treatment. Considering the relationship between oral health and orthodontic treatment, clinicians and patients should know the risks and take precautions.

Background: The aim of this study was to investigate the possible association between maternal periodontal disease and dental caries that affect oral health and unexplained infertility.Methods: This cross‐sectional case‐control study included 50 fertile women and 50 women with unexplained infertility aged 21 to 39 years. Dental and periodontal parameters were examined to evaluate the oral health of the participants. According to the new periodontal disease classification, periodontitis severity was determined.Results: In infertile women, the number of advanced caries lesions, the percentage of bleeding on probing (BOP), gingival index (GI), probing depth (PD), and clinical attachment level (CAL) were higher (P < 0.05). The DMFT and mean plaque index (PI) were not statistically different between the two groups. The PISA and PESA values were higher in women with unexplained infertility than in fertile women (P = 0.005 and P = 0.002, respectively). In multivariate analysis showed that association of DMFT and BOP variables with periodontitis was found to be significant for all women included in the study and for infertile women only (P = 0.000 and P = 0.012 for DMFT, respectively; P = 0.000 and P = 0.016 for BOP, respectively).Conclusion: The chronic inflammatory environment caused by periodontitis and advanced carious lesions in women with unexplained infertility should be of great concern as it may have a role in the etiology of infertility.

Aim AcceleDent® Aura (OrthoAccel® Technologies, Bellaire, TX, USA) is a class II medical device with U.S. Food and Drug Administration approval that uses SoftPulse Technology™ to increase the speed of tooth movement. The aim of this study was to evaluate the application of vibrational forces on the rate of canine distalization. Methods A total of 20 patients (10 boys and 10 girls) who had class II division 1 malocclusion or severe crowding and indicated first premolar extractions for treatment were included in the study. The patients were divided into two groups: 8 in the control group and 12 in the study group. Three-dimensional digital models were taken just before canine distalization and after space closure using the 3Shape TRIOS® R700 (3Shape Inc., Copenhagen, Denmark) device. Linear measurements between molars and canines were evaluated. The results were assessed with SPSS 23.0 program (IBM, Armonk, NY, USA). Results One subject was excluded from the study group due to insufficient oral hygiene and poor patient compliance. Tooth movement rates were 1.06 mm/month for mandibular and maxillary canine teeth in the control group. In the study group, tooth movement rates were 1.24 mm/month for maxillary canines and 1.09 mm/month for mandibular canines. These differences were not statistically significant (p > 0.05). Conclusion AcceleDent® Aura is an easy-to-use device; however, in our study its application did not have any positive effects on canine retraction rates.