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Evaluation of the unilateral complete cleft lip and palate patients on the dental arch relationships between upper and lower jaws.

AYIGULI ·Tuerdi1,MI Cong-bo2,AYINUER Dawuti3,HAN Rui2,CHEN Liang2,ZHU Ting-ting2.1.Department of Stomatology,The People Hospital of Xinjiang Uygur Autonomous Region,Xinjiang Urumqi 830001,China;2.Department of Orthodontics,the First Affiliated Hospital of Xinjiang Medical University,Xinjiang Urumqi 830054,China;3.Department of Ophthalmology,The Rehabilitation Hospital of Xinjiang People Government,Xinjiang Urumqi 830094,China.  
Objective:This study aimed to use the Goslon Yardstick system to evaluate the dental arch relationships of mixed dentition and permanent dentition of patients with unilateral complete cleft lip and palate(UCCLP),as well as furnish evidence for diagnosis and treatment design to patients with cleft lip and palate.Method:The material of this study consisted of dental casts of 40 patients.Two balanced groups based on dent information.There are mixed dentition group(n=18) and permanent dentition group(n=22).Goslon Yardstick system were used to evaluate.The data were statistically analyzed.Result:In mixed dentition,22.2 % patients'dental arch relationships were not very coordinate,which belonged to grade 4 and grade 5 in Goslon Yardstick system,and the mean Goslon score was 2.72.Meanwhile,in permanent dentition,40.9 % patients' dental arch relationships were not very coordinate,which belonged to grade 4 and grade 5 in Goslon Yardstick system,and the mean Goslon score was 3.46.Conclusion:Dental arch relationships and treatment in the permanent dentition of UCCLP patients were more complicated than mixed dentition.
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