Objectives: The aim of the study is to assess the relation of Demirjian’s and Nolla’s dental age determination methods with chronological age and bone age in Turkish children aged between 10-15. Methods: In the retrospective study, 717 children were included, their chronological age and bone age in accordance with Greulich-Pyle Atlas by evaluating left hand wrist radiograms, dental age in accordance with Demirjian’s and Nolla’s methods by using panoramic radiograms were analyzed. Statistical analyses were performed using SPSS version 23.0 for Windows (SPSS Inc., Chicago, Illinois, USA). Results: The bone age and the dental ages calculated according to Demirjian’s and Nolla’s methods was found higher than the chronological age by +0.29 year, +0.77 year and +0.23 year, respectively. The closest result to chronological age came from Nolla’s method. Conclusions: In contrast to the previous studies in the South Turkish population, Demirjian method was found to give incompatible results. In this study, it was shown that Nolla method is more reliable in determining dental age for this population. In addition, the bone age and dental age estimated according to Nolla methods were quite similar to each other.

Today, people frequently turn to the internet to seek information about temporomandibular joint disorders and treatments, as in all other health areas. However, does the information presented online without professional evaluation truly reflect the facts, and if so, to what extent? Based on this question, our study aims to evaluate YouTube™ videos on the treatment of temporomandibular joint diseases. In this cross-sectional study, a search was conducted on YouTube using the search term “TMJ (temporomandibular joint) treatment” for YouTube videos. One hundred sixty-three videos that met the study criteria were evaluated for content usefulness by 3 researchers. The videos were categorized as having low and high content according to usefulness score. All videos were classified according to the source and type of the videos. Statistical analysis were conducted using with Chi-Square test and Mann–Whitney U test. It was found that 130 videos had low content, while 33 videos had high content. It was observed that the number of views, duration in minutes, number of comments, number of likes, number of days since uploading and the rate of views were higher in videos with high content (P < .05). However, no significant association was found between the usefulness score and the source that uploaded the video and video type (P > .05). The results of our study reveal that the vast majority of videos on the treatment of temporomandibular diseases on YouTube contain insufficient information.

Amaç: Bu çalışmanın amacı, dentofasiyal anomali tanılı hastaların total farengeal havayolu hacimleri ile nazofarengeal, retropalatal ve retroglossal havayolu hacimleri arasındaki korelasyonu değerlendirmektir.Materyal ve Metod: Yaşları 9.1 ile 13.8 aralığında olan 26 kız ve 34 erkek olmak üzere toplam 60 dentofasiyal deformite tanısı konulmuş bireyin CBCT kayıtları çalışma kapsamına alınmıştır. Kayıtlar üzerinden hastaların yaş, cinsiyet, nazofarengeal, retropalatal, retroglossal ve total havayolu hacimleri kaydedilmiştir. Solunum yolları ile ilgili ölçümler hacimsel parametreler kullanılarak karşılaştırılmıştır. Hasta verileri cinsiyetler üzerinden ve cinsiyetten bağımsız olarak iki aşamada istatistik analiz programı ile yapılmıştır.Bulgular: Nazofarenks, retropalatal, retroglossal hacimler ile total hacim değişkenleri arasında istatistiksel olarak anlamlı ilişkiler bulunmaktadır (p<0.05).Sonuçlar incelendiğinde, nazofarengeal hacim ile total hacim arasında %59,9 retropalatal hacim ile total hacim arasında yaklaşık %84,2 ve retroglossal hacim ile total hacim arasında %73,1 düzeyinde aynı yönlü ilişki bulunmaktadır. Ayrıca nazofarengeal hacim ile retropalatal hacim arasında yaklaşık %27,1; retropalatal hacim ile retroglossal hacim arasında %48,7 düzeyinde aynı yönlü ilişki mevcuttur. Korelasyon fark testi bulgularına göre, kızlarda retropalatal-total hacim arasında ilişki erkeklere göre yaklaşık %13 oranında daha fazladır. Cinsiyet değerlendirmeye alınmadan yapılan korelasyon değerlendirilmesinde ise total hacim ile nazofarenks, retropalatal ve retroglossal hacimler arasında güçlü korelasyon varlığı saptanmıştır. Bu kolerasyonların içinde en güçlü ilişki total hacim ile retropalatal hacim arasında bulunmuştur (%84,2). Sonuç: Çalışmamız sonucunda, her üç anatomik bölgenin de total havayolu hacmi için önemli olduğu, klinik olarak önemli bulunmasa da nazofarengeal havayolu ölçümlerinin de total havayolu hacmi ile güçlü bir kolerasyon gösterdiği, retropalatal havayolu hacminin total havayolu hacmi ile en güçlü korelasyonu gösterdiği ve cinsiyetler arası segmental ve total havayolu hacimleri arasında retropalatal-total hacim hariç istatistiksel olarak anlamlı bir fark bulunmadığı sonuçları kaydedilmiştir

Background/Objectives : This study aimed to determine the awareness levels of individuals presenting to an orthodontic clinic regarding their orthodontic treatment needs and to identify the various factors contributing to the development of this awareness, particularly the developmental period. Methods: A total of 160 participants were divided into four equal age groups (n = 40 each): early adolescence, middle adolescence, late adolescence, and young adults. Participants’ subjective awareness of orthodontic treatment need was assessed using questionnaire items, the Index of Orthodontic Treatment Need-Aesthetic Component (IOTN-AC), and a Visual Analog Scale (VAS) for self-perceived dental aesthetics, while normative treatment need was evaluated by an expert orthodontist using the IOTN, DAI, and ICON. The primary outcome was aesthetic agreement, classified as underestimation, exact concordance, or overestimation according to the participant-minus-researcher raw IOTN-AC score difference. Sensitivity analyses allowed a ±1-point tolerance and included a pooled analysis of the two youngest age groups. Results: Researcher IOTN-AC scores correlated strongly with IOTN-DHC (ρ = 0.861; 95% CI 0.804–0.904), DAI (ρ = 0.755; 95% CI 0.664–0.827), and ICON (ρ = 0.860; 95% CI 0.802–0.903; all Holm-adjusted p < 0.001, n = 160), confirming construct alignment with normative treatment need. Subjective perception of dental irregularity and skeletal discrepancy increased significantly with age (p = 0.005 and p < 0.001). In the exploratory pooled model, the odds of underestimation rather than exact concordance were lower at 19–21 years (OR = 0.11; 95% CI 0.04–0.35) and 22–30 years (OR = 0.09; 95% CI 0.03–0.28) than at 12–18 years. The concordant perception group demonstrated higher self-referral and subjective awareness (p < 0.05). Nonetheless, these estimates remain susceptible to sparse-data bias. Conclusions: Personal awareness of morphological and skeletal discrepancies strengthens with age, with treatment-need underestimation diminishing significantly from age 19 onward in favor of concordant perception. However, conclusions specific to middle adolescence remain uncertain because exact concordance was sparse. While enhancing awareness at younger ages is hypothesized to facilitate timely intervention during active growth periods, longitudinal studies are warranted to evaluate the long-term clinical consequences of early awareness deficits on skeletal growth patterns and subsequent surgical requirements.

Objective: Autism Spectrum Disorder (ASD) is a neurodevelopmental condition that may influence oral health and orthodontic characteristics due to associated behavioural, sensory, and motor challenges. This study aimed to compare orthodontic treatment need, Angle classification, and oral hygiene status between children with ASD and typically developing children. Materials and Methods: This cross‐sectional comparative study included 50 children aged 6–18 years with ASD and 43 age‐ and sex‐matched typically developing children. Malocclusion and orthodontic treatment need were assessed using Angle classification and the Index of Complexity, Outcome, and Need (ICON), respectively. Oral hygiene was evaluated with the Simplified Oral Hygiene Index (OHI‐S). Intra‐rater reliability was assessed with the intraclass correlation coefficient (ICC = 0.96). Group differences were assessed using the Mann–Whitney U , chi‐square, or Fisher's exact tests, as appropriate. Spearman's correlation and age‐ and sex‐adjusted multivariable regression analyses were also performed. Results: ICON scores were significantly higher in children with ASD than in typically developing children ( p = 0.024). Oral hygiene was significantly poorer in the ASD group ( p < 0.001), whereas Angle classification did not differ significantly between the groups ( p = 0.118). After adjustment for age and sex, ASD diagnosis remained significantly associated with higher ICON scores (adjusted B = 9.74, 95% CI : 2.95–16.53, p = 0.005) and greater odds of being classified in a poorer oral hygiene category (adjusted OR = 4.65, 95% CI : 2.05–10.56, p < 0.001). CARS scores were not significantly correlated with ICON scores (rho = −0.152, p = 0.291). Conclusion: Within the limitations of this study sample, children with ASD showed higher ICON scores and poorer oral hygiene status compared with typically developing children. These findings indicate an association between ASD status, orthodontic treatment need as assessed by ICON, and oral hygiene status in the study population. Further studies are needed to better understand the factors influencing orthodontic and oral health outcomes in children with ASD.

Temporomandibular eklem, temporal kemiğin glenoid fossası ile mandibular kondilin birleşmesiyle, disk, eklem yüzeyleri, eklem kapsülü, sinoviyal sıvı, kıkırdak ve bağlardan meydana gelen kompleks anatomik oluşumdur. Bu kompleks yapının herhangi bir yerinde meydana gelen morfolojik ve fonksiyonel bozulmalar temporomandibular bozukluklar olarak adlandırılır. Temporomandibular bozukluklar çoklu etiyolojik kökene sahip, yaşam kalitesini düşürebilen bir sağlık sorunudur. Temporomandibular eklemin doğru ve detaylı olarak değerlendirilmesi ile bu bozuklukların teşhis ve tedavisi doğru şekilde gerçekleştrilebilir. Bu kitapta temporomandibular eklem ve temporomandibular bozukluklar, multidisipliner yaklaşımla, güncel literatür ışığında ele alınmıştır.