The aim of this study was to evaluate the relationship of mandibular canal course with mental foramen localization in panoramic radiographs on edentulous patients' for implant placement evaluation. Material and Methods:This retrospective study was carried out on the panoramic radiographs of 788 edentulous patients. Horizontal measurements L (left mental foramen to the left mandibular ramus), R (right mental foramens to the right mandibular ramus), M (between the mental foramens) and vertical measurements D1 (mental foramen's inferior border to the mandibular basis), D2 (mental foramen's superior border to the alveolar crest) were digitally evaluated. Mandibular canals were classified into two types as linear and elliptic. Analysis of demographic data and correlations between canal course and linear measurements were carried out. Kolmogorov-Smirnov and Shapiro Wilks tests, Kruskal Wallis test, and Chi-squared test were used to compare the qualitative data (p <0.05).Results: There was a statistically significant difference between the D1/D2 mean values and the canal course according to the age groups. The rate of the elliptic canal course in the men (41.6%) was significantly higher than that in the women (26.6%). There was no statistically significant difference between the mean D1/D2, (R + L)/M and L/M values according to the canal course.Conclusions: Both elliptical and linear canal courses do not affect the interforaminal distances, resulting ineffective in the anteroposterior spread of implants in cases of interforaminal implant placement.
Bu çalışmada süt dişi çekim nedenlerinin; yaş, cinsiyet ve diş konumuyla ilişkisinin araştırılması amaçlanmıştır. Gereç ve Yöntem: Yeditepe Üniversitesi Diş Hekimliği Fakültesi'nde 2018-2019 yılları arasında lokal anestezi altında süt dişi çekimi yapılan 2 ile 14 yaş arası 1074 hastanın yaş, cinsiyet, radyografi, sistemik durum ve çekim nedenleri retrospektif olarak incelendi. Bulgular: Çekim nedenlerinde cinsiyetler arası bir fark bulunmazken en çok çekim 6-9 yaş grubunda (%53,4) yapılmıştır. İki-beş yaş ve 6-9 yaş gruplarında çürük en sık çekim nedenini oluştururken; 10-14 yaş grubunda dişler en sık fizyolojik rezorpsiyon nedenli çekilmiştir. Süt molarlar en çok çekilen diş tipi olarak bulunmuştur (%70,1) (p<0,05). Sonuç: Çocuklara ve ebeveynlerine verilen ağız-diş sağlığı eğitimleri yaygınlaştırılarak patolojik kaynaklı diş çekim prevalansı düşürülebilir. Anahtar kelimeler: Süt dişi, çekim, çürük, fizyolojik rezorpsiyon SUMMARY Aim: The aim of this study was to evaluate the reasons for extraction of primary teeth in terms of age, sex and the type of teeth. Material and Method: Retrospective analysis of 1074 children aged between 2 to 14 who underwent primary tooth extraction under local anesthesia in Yeditepe University Dental Faculty between 2018 and 2019 was carried out. Patient's age, sex, medical condition, type of tooth extracted and reason for extraction were analyzed. Results: There was no sex difference regarding extraction reasons. Most teeth extraction was performed in the age group of 6-9 (53.4%). While the caries was the main reason for primary teeth extraction in the age groups of 2-5 and 6-9; physiological resorption was found to be the most common reason in the age group of 10-14. Primary molars (70.1%) were the most common type of teeth extracted (p<0.05). Conclusion: Prevalance of pathological teeth extraction can be reduced by widespreading of oral health education to children and parents.
Çalışmamızda ramus veya simfizden alınan blok greftlerle kazanılan kemik miktarlarının değerlendirilmesi amaçlanmıştır. Gereç ve Yöntem: Horizontal veya kombine alveolar defekti bulunan 15 hastanın radyolojik görüntüleri restrospektif olarak incelenmiştir. Defektler ramus veya simfiz bölgesinden alınan otojen blok greftlerle ogmente edilmiştir. Pre-op ve post-op 6. ayda alınan dental volumetrik tomografi (DVT) görüntüleri ile kazanılan kemik miktarları değerlendirilmiştir. Sonuçlar Wilcoxon, Mann Whitney U ve Pearson Korelasyon testleri ile değerlendirilmiştir (p<0,05). Bulgular: Kadın hastaların post-op kemik kalınlığı değerleri pre-op kemik kalınlığı değerlerinden istatistiksel olarak anlamlı derecede yüksek bulunmuştur (p=0,003). Ramus grubunda kazanılan kemik miktarı simfiz grubundan istatistiksel olarak anlamlı derecede yüksek bulunmuştur (p=0,002). Sonuç: Tüm hastalarda en az 4 mm çapında implant yerleştirilebilecek yeterli horizontal kemik hacmi elde edilmiştir. Anahtar kelimeler: Ogmentasyon, otojen, ramus grefti, simfiz grefti, intra-oral donör saha SUMMARY Aim: The aim of this study was to evaluate the acquired bone volume obtained from ramus or symphysis block grafts. Materials and Method: This retrospective study was conducted on 15 patients with horizontal or combined alveolar bone defects. They were treated by autogenous bone blocks harvested from the ramus or symphysis. Bone volumes were measured pre-op and post-op 6th month by dental volumetric tomography images respectively. The results were analyzed by Wilcoxon, Mann Whitney U and Pearson Correlation tests (p<0,05). Results: Post-op bone volume values are statistically higher than pre-op ones in female group (p=0,003). Acquired bone values of the ramus group is statistically higher than the symphysis group (p=0,002). Conclusion: In all patients, sufficient horizontal bone volumes were acquired for at least 4 mm diameter implant insertion.
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