TY - JOUR T1 - Discrepancy in the lower arch perimeter in patients with a unilateral cleft lip and palate: orthodontic model analysis TT - Tek taraflı dudak ve damak yarığına sahip hastalarda alt çene ark boyu uyumsuzluğu: ortodontik model analizi AU - Uzuner, Fatma Deniz AU - Gülşen, Ayşe AU - Işık Aslan, Belma AU - Tosun, Gülce AU - Üçüncü, Neslihan PY - 2019 DA - January DO - 10.17214/gaziaot.424633 JF - Acta Odontologica Turcica JO - Acta Odontol Turc PB - Gazi University WT - DergiPark SN - 2147-690X SP - 16 EP - 20 VL - 36 IS - 1 LA - en AB - Objective: This studyaimed to assess the lower arch length discrepancy in a group of patients with unilateral cleft lip and palate (UCLP).Materialsand Method: Pretreatmentdental casts and panoramic radiographs of 23 patients (aged 9–19 years) with anonsyndromic complete UCLP, without having largerestorations/crowns, tooth agenesis, impacted or supernumerary teeth in the lower arch, and previous orthodonticand/or prosthetic treatment, were evaluated. All patients underwent lipand palate repair. Lower arch discrepancies were determined using the Hayes-Nanceanalysis. Panoramic radiographs were used to estimate the size of permanentpremolars for the patients with late mixed dentition. The positive discrepancydefined diastema, whereas the negative discrepancy defined crowding in thelower arch. Descriptive statistics were presented using frequencies andpercentages, and the differences were evaluated using the binomial test.Results: One out of 23 patients had no discrepancy in thelower arch. For the remaining patients (n = 22), the prevalence of diastema was47.8% (n = 10), with a mean value of 3.6 ± 1.9 mm, and lower archcrowding was observed in 52.2% (n = 12), with a mean value of –2.9 ± 1.4 mm. No significantdifference was found between the prevalence of crowding and diastema (p = 0.832).Conclusion: In patients with a UCLP, diastemacan be encountered approximately at the same frequency as crowding in the lowerarch. Crowding was at a low to mid-level. KW - Crowding KW - dental arch KW - diastema N2 - Amaç: Tek taraflı dudak ve damak yarığına (DDY) sahip hastalarda alt çene arkboyu uyumsuzluğunu belirlemektir.Gereç ve Yöntem: Non-sendromik tektaraflı total DDY’ye sahip olup, alt çenede büyük dolgu/kronlu diş bulunmayan,diş eksikliği, gömülü veya fazla dişi olmayan kronolojik yaşı 9 ile 19 yıl arasında değişen 23hastaya ait tedavi öncesi panoramik radyograf ve ortodontik modellerdeğerlendirildi. Hastaların dudak ve damak yarığı opere edilmiştir. Alt arkboyu uyumsuzluğunu belirlemede Hayes-Nance analizi kullanıldı. Geç karışıkdişlenme dönemindeki hastalar için daimi premolar boyutları panoramikradyograflarla değerlendirildi. Pozitifark boyu uyumsuzluğu diastema, negatif ark boyu uyumsuzluğu çapraşıklık olarakkabul edildi. Tanımlayıcı istatistikler sıklık ve yüzde oranları kullanılarakyapıldı ve farklar binomial test ile değerlendirildi.Bulgular:İncelenen 23 hasta içinde sadece bir hastada ark boyu uyumsuzluğu görülmedi.Kalan 22 hastanın % 47.8’inde (n = 10) diastemasaptandı; bu miktar ortalama 3.6 ± 1.9 mm olarak bulundu. Alt ark çapraşıklığı ise%52.2 (n = 12), prevalans ile ortalama -2.9± 1.4 mmolarak bulundu. Çapraşıklık ve diastema prevalansları bakımından istatistikselolarak önemli bir fark bulunmadı (p = 0.832).Sonuç:Tek taraflı DDY’ye sahip hastalarda, alt çenede, diastema veçapraşıklığa aynı prevalansta rastlanabilmektedir. Görülen çapraşıklık hafifile orta şiddettedir. CR - Antonarakis GS, Tsiouli K, Christou P. Mesiodistal tooth size in non-syndromic unilateral cleft lip and palate patients: a meta-analysis. Clin Oral Invest 2013;17:365–77. CR - Walker SC, Rye Mattick C, Hobson RS, Steen IN. Abnormal tooth size and morphology in subjects with cleft lip and/or palate in the north of England. 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