Objectives: To investigate the treatment efficacy and follow-up stability of the asymmetric Forsus appliance by evaluating longitudinal changes in dental arch asymmetry on digital dental models from 21 patients. Materials and Methods: Maxillary and mandibular reference lines were used for measurements of intra-arch asymmetry at pretreatment (T1), posttreatment (T2), and 4.2 years after treatment (T3). Maxillary and mandibular measurements were performed relative to the dental midline and anterior reference line on digital dental models. To determine the amount of asymmetry between the Class I and Class II sides of a given arch, all maxillary and mandibular parameters were measured on each side of the model separately. Repeated-measures analysis of variance/paired sample t -tests were performed to evaluate dental arch asymmetries at the P < .05 level. Results: The alveolar transverse dimensions of the posterior segment of both arches were increased during treatment ( P < .05) and remained stable during the retention period. Class II subdivision malocclusion was caused by distal positioning of the mandibular canine, premolars, and first molar on the Class II side ( P < .05). Asymmetry was resolved by treatment with asymmetric Forsus appliances. The resolved asymmetry remained stable over the long term. There were no significant differences between T2 and T3 ( P > .05). Conclusions: The asymmetric Forsus appliance can be used to treat dental arch asymmetry in patients with Class II subdivision malocclusions.

Background: Adhesive systems are important for achieving reliable and durable bracket bonding in orthodontic treatments. The purpose of this study is to compare the outcomes of a new one-step orthodontic bonding system that combines the primer and adhesive solutions. Methods: In this study, four groups were formed, each consisting of 20 first premolar teeth. Acid etching was applied to all teeth for 30 s, except in Group II. Group I included teeth where a single layer of primer was applied using the Transbond XT system before bracket bonding. Group II consisted of teeth bonded with brackets after using a self-etching primer with the Transbond XT system. Group III used GC Ortho Connect, a single-step adhesive that incorporates the primer within the adhesive itself. Group IV, a single layer of primer was applied before bonding with GC Ortho Connect. Shear bond strength (SBS) was assessed using one-way ANOVA and the Tukey-HSD test, while Adhesive Remnant Index (ARI) scores were analyzed using the Chi-square test at a significance level of p < 0.05. Results: SBS measurements were recorded as 13.28 ± 2.15 MPa for Group I, 11.06 ± 2.26 MPa for Group II, 10.37 ± 1.92 MPa for Group III, and 16.02 ± 2.17 MPa for Group IV. Statistical analysis using the Tukey test revealed significant differences in SBS values between Groups II and IV, as well as Groups III and IV (p < 0.05). All groups showed clinically acceptable bond strength, with Group IV demonstrating superior adhesion. Additionally, the chi-square test indicated a statistically significant variation in the ARI scores across all four groups (p < 0.05). Conclusions: The adhesive performance of the one-step GC Ortho Connect system is clinically comparable to Transbond XT. However, primer application is necessary to achieve optimal bond strength.

Cleft lip and palate,facial soft tissue thickness,skeletal Class III

The awareness of the society and, accordingly, the number of patients who need orthodontic treatment has increased gradually. Nowadays, the importance of the concept of time has focused the attention of researchers on the completion of orthodontic treatments in a shorter time. Heavy forces applied to shorten the treatment period in orthodontic treatments cause many undesirable conditions, such as root resorption, crushing of periodontal fibers, and formation of hyalinization tissue. Therefore, researchers are working on methods that will accelerate orthodontic tooth movement and shorten the treatment time. In this section, applications that accelerate orthodontic tooth movement will be discussed.

Amaç: Çalışmamızın amacı; sınıf III maloklüzyona sahip ortognatik cerrahi hastalarında sefalometrik filmler üzerinde sert ve yumuşak doku değişimlerinin incelenmesi, ortognatik cerrahi sonrası yaşam kalitesinin ve cerrahi sonrası hasta memnuniyetinin değerlendirilmesidir. Gereç ve Yöntemler: İskeletsel sınıf III maloklüzyona sahip ortognatik cerrahi prosedür geçirmiş 48 birey geçirdikleri cerrahi operasyona göre 2 gruba ayrılmıştır. Tek çene cerrahi operasyonu geçiren 14 birey (ortalama yaş 23,90) bilateral sagital split ramus osteotomisi operasyonu geçirmiştir. Çift çene cerrahi operasyonu geçiren 34 birey alt çene için bilateral sagital split ramus osteotomisi operasyonu üst çene için Le Fort I osteotomisi operasyonu geçirmiştir. Hastaların başlangıç ve bitim lateral sefalometrik röntgenleri dijital ortamda çizilmiştir. Postoperatif hasta memnuniyeti anketi (PSPSQ) ve oral sağlık etki profili (OHIP-14) anketleri ortalama 23,54 ay sonra (min 7ay, max 24 ay) hastalara uygulanmıştır. Sefalometrik ölçümlerin ve hasta memnuniyeti anketlerinin korelasyonu değerlendirilmiştir. Bulgular: Sınıf III maloklüzyona sahip ortognatik cerrahi hastalarında her iki ankette ve her iki grupta yüksek memnuniyet skorları görülmektedir. Tek ve çift çene cerrahisi grubu hastalarında psikolojik rahatsızlıklar ile ilgili sorular haricinde farklılık bulunmamaktadır. Sonuç: Çalışmamız sonucunda hastaların büyük çoğunluğunun ortognatik cerrahi sonrasında yaşam kalitelerinden ve cerrahinin estetik fonksiyonel ve psikolojik sonuçlarından memnun kaldıkları görülmüştür.