Data comparing the wear of 3D printed permanent resin (PR) and milled zirconia (Z) to that of primary tooth enamel are limited. This study aimed to investigate the wear behavior of two materials and their effect on antagonist primary canine, in comparison with primary tooth enamel. Milled monolithic Z (IPS e.max ZirCAD Prime Esthetic, Ivoclar), and PR (Permanent Crown Resin, Formlabs), and primary central incisor enamel (PCIE) (per group n = 15) as the control group were included in the study. Z and PR were polished by intraoral polishing set (Optragloss, Ivoclar Vivadent). Two-body wear tests were performed in a chewing simulator for all specimens, with primary canines used as antagonists (50 N, 1.2 × 10⁵ cycles, 1.56 Hz, 5/55°C). Wear volume and wear depth were assessed by overlapping the data before and after the chewing test with a software program (Geomagic Control X). Vickers hardness tests were performed (n = 10) for both materials. Data were analyzed statistically with one-way ANOVA (p < 0.05). For each group, n = 9 specimens were able to complete 120,000 cycles. The results showed that the PR exhibited the highest volume loss, while Z had the lowest wear depth (p < 0.05). When we examined the antagonist teeth, the highest volume loss was observed in the Z group (p < 0.05), but there was no significant difference in wear depth (p = 0.079). The Vickers hardness of Z was significantly higher than that of the PR (p < 0.05). Both highly polished monolithic Z and PR demonstrated comparable antagonist wear to that of PCIE; however, while PR showed a similar wear resistance to PCIE, Z exhibited the highest resistance overall. PR demonstrated wear resistance similar to primary tooth enamel under the conditions of this study, suggesting it may be a suitable option for pediatric restorations where antagonist wear is a primary concern. However, additional properties require further evaluation.

Aim: This retrospective study aimed to evaluate the demographic and operational data of uncooperative healthy individuals and individuals with special needs who underwent dental treatments under sedation and general anesthesia. Methods: Data of 458 patients with special needs and 77 healthy noncooperative patients who were examined at XXX University Faculty of Dentistry between January 2022 and May 2023 and underwent dental treatments under general anesthesia were examined retrospectively. Demographic data of the patients, American Society of Anesthesiologists (ASA) scores, mallampati (MP) scores, disability status, if they have systemic diseases, type of anesthesia (sedation/general anesthesia), anesthetic agents and analgesia used, operation duration and dental treatments, were evaluated. Results: The average age of 535 patients who received dental treatment was 13.5±9.9 years and 58.1% (n=311) of the patients were male and 41.9% (n=224) were female. According to ASA scores, the distribution was 15.7% ASA I, 77.6% ASA II, and 6.7% ASA III. While 14.4% of the patients were systemically healthy, 16.7% had epilepsy, 12.9% had cerebral palsy, 12.1% had mental retardation, and 7.1% had Down syndrome. Of 7.1% had various comorbidities such as cardiological problems. Sedation was applied to 7.3% (n=39) of the patients, and general anesthesia was applied to 92.7% (n=496). The average anesthesia duration was 74.5±34.6 minutes. While the average restorative treatment applied to the patients was calculated as 6.45±3.9, tooth extraction 5.25±4.3, fissure sealant 2.44±2.5, pulp treatment 1.62±0.9; Trauma splint was applied to 3 patients. Conclusions: While pre-anesthesia evaluation is very important in determining the risks in dental general anesthesia and sedation applications, the operating conditions and the general and oral health of the patients are effective in the dental treatment decision.

Öz Amaç: Bu çalışmanın amacı; Londra Atlas tekniğinin ve Cameriere’nin 3. molar olgunluk indeksinin (I3M) Türk popülasyonunda 18 yaş yasal sınırının belirlenmesinde radyolojik diş yaşının doğruluğunu, özgüllüğünü ve duyarlılığını değerlendirmektir. Gereç ve Yöntemler: Çalışma kesitsel gözlemsel olarak tasarlanmıştır. Çalışmaya 14 - 21 yaş aralığında toplamda 804 (470 kadın, 334 erkek) birey dahil edilmiştir. 18 yaş yasal sınırının belirlenmesinde Londra Atlas ve I3M yöntemleri kullanılarak farklı iki araştırmacı tarafından radyolojik diş yaşının doğruluğu, özgüllüğü ve duyarlılığı değerlendirilmiştir. Bulgular: 18 yaş eşiğini belirlemede, Londra Atlas tekniği % 88.74 duyarlılık, % 87.37 özgüllük ve % 88.1 doğruluk gösterirken, I3M tekniği % 95.54 duyarlılık, % 75.50 özgüllük ve % 85.5 doğruluk göstermiştir. İki teknik arasındaki uyumluluk düzeyine bakıldığında ise (κ = 0.813) elde edilen uyumluluğun iyi düzeyde olduğu bulunmuştur. Sonuç: I3M ve Londra Atlas teknikleri Türk toplumunda 18 yaş eşiğini belirlemede benzer performanslar göstermiştir. Yaş tahminini güçlendirmek için Londra Atlas ve I3M tekniklerinin kombine kullanımı sonuçları değiştirmemiştir. Londra Atlas tekniğinin Türk toplumuna uyumunu görebilmek için daha çok çalışmaya ihtiyaç vardır. Anahtar kelimeler: adli tıp, panoramik radyografi, pedodonti, yaş tayini

This study evaluates the location and supero-inferior diameter of the posterior superior alveolar canal (PSAC) in adolescent patients with unilateral cleft lip and palate (CLP) using cone-beam computed tomography (CBCT). CBCT scans of sixty adolescent patients (30 male, 30 female) having unilateral CLP were included in the study. The visibility of PSAC, its location relative to the maxillary sinus (upper, middle and lower parts of the sinus and alveolar crest level), and the supero-inferior diameter of the PSAC were evaluated. Additionally, the entry point of the PSAC into the maxillary sinus was assessed relative to the teeth. The average age of the patients was 15.5 ± 1.6 years. PSAC is located significantly more in the middle (61.7%) and superior (38.3%) third of the maxillary sinus in cleft side (CS) (p < 0.001). The mean PSAC supero-inferior diameter in the CS (1.08 ± 0.2 mm) was significantly higher than in the non-cleft side (NC) (0.96 ± 0.2 mm) (p < 0.001). When the position of the PSAC relative to the teeth was evaluated, it was seen that it entered the maxillary sinus more from the first premolar tooth level in CS and from the first molar tooth level in NC (p < 0.05). PSAC location in CS was most commonly found in the middle and superior thirds of the maxillary sinus compared to NC. The mean supero-inferior diameter of PSAC was larger in CS compared to NC. The entry point of PSAC into the maxillary sinus was more anteriorly positioned in CS compared to NC.

AMAÇ: Covid-19 döneminde farklı mesleki tecrübeye sahip diş hekimlerinin anksiyete düzeylerini değerlendirmektir.GEREÇ VE YÖNTEM: Bu araştırmadaki veriler Kasım 2020 içinde internet üzerinden ulaşılabilen ve anketi doldurmayı kabul eden diş hekimlerinden, Google Formlar programı kullanılarak elde edildi. Katılımcılaar mesleki deneyimlerine göre anksiyete düzeylerini incelemek için üç gruba ayrıldı. Birinci gruba pandemi dolayısıyla yüz yüze eğitimleri yarım kalıp eğitimlerini çevrimiçi tamamlamış ≤1 yıl, ikinci gruba 1-10 yıl arası, üçüncü gruba ise 10 yıl üzerinde mesleki tecrübesi olan diş hekimleri dahil edilmiştir. Araştırmada literatürde kabul edilmiş, Türkçe geçerlik ve güvenilirliği yapılmış Koronavirüs Anksiyete Ölçeği (KAÖ) kullanılmıştır.BULGULAR: Çalışmaya yaş ortalaması 31.08±7.78 olan, 193 erkek, 354 kadın toplamda 547 diş hekimi katıldı. KAÖ skorları, mesleki tecrübe ile karşılaştırıldığında üç grup arasında anlamlı fark bulunmuştur. Gruplar kendi içinde birbiriyle karşılaştırıldığında anksiyete düzeyleri arasında ≤1 yıl tecrübeli hekimler ve 1-10 yıl arası tecrübeli hekimler arasında anlamlı fark gözlenmemiştir. Ancak anksiyete düzeyleri ≤1 yıl tecrübeli hekimlerde >10 yıl tecrübeli hekimlere göre; >10 yıl tecrübeli hekimlerde 1-10 yıl arası tecrübeli hekimlere göre anlamlı düzeyde yüksek bulunmuştur (p<0.05).SONUÇ: Çalışmanın sonucunda mesleki tecrübe ile koronavirüs anksiyetesi arasında ilişki olduğu görülmüştür.

Background/Objective: Throat packs are widely used during orofacial surgery to reduce the frequency of postoperative nausea and vomiting (PONV). However, evidence supporting their use is mixed, with associated risks such as postoperative sore throat and the possibility of being forgotten in situ. Methods: The aim of this study is to evaluate the effectiveness of throat packs in preventing PONV and postoperative sore throat during dental treatments under general anesthesia in children with special healthcare needs (SHCNs). Eighty children with SHCNs were randomized into two groups: throat packing (Group TP, n = 41) and no throat packing (Group n-TP, n = 39). A throat pack was used in Group TP, and PONV and sore throat were evaluated at 1, 2, and 4 h postoperatively. Statistical Package for Social Sciences (SPSS) version 23.0 was used for data analysis. The registration number at ClinicalTrials.gov is NCT06169306, registered on 28 December 2023. Results: Patients in Group n-TP showed significantly higher PONV values at 1 and 2 h postoperatively (p < 0.001, p = 0.019, respectively). Visual Analog Scale (VAS) values were also significantly higher in Group TP at 1 and 2 h postoperatively (p < 0.001, p = 0.002, respectively). Conclusions: Using throat packs in dental treatments under general anesthesia for children with SHCNs reduced the incidence of PONV but increased the incidence of postoperative sore throat.