지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
이용수
초록· 키워드
오류제보하기
Objective: We evaluated the effects of tooth displacement on frictional force when conventional ligating lingual brackets (CL-LBs), CL-LBs with a narrow bracket width, and self-ligating lingual brackets (SL-LBs) were used with initial leveling and alignment wires. Methods: CL-LBs (7th Generation), CLLBs with a narrow bracket width (STb), and SL-LBs (In-Ovation L) were tested under three tooth displacement conditions: no displacement (control); a 2-mm palatal displacement (PD) of the maxillary right lateral incisor (MXLI); and a 2-mm gingival displacement (GD) of the maxillary right canine (MXC) (nine groups, n = 7 per group). A stereolithographic typodont system and artificial saliva were used. Static and kinetic frictional forces (SFF and KFF, respectively) were measured while drawing a 0.013-inch copper-nickel-titanium archwire through brackets at 0.5 mm/min for 5 minutes at 36.5℃. Results: The In-Ovation L exhibited lower SFF under control conditions and lower KFF under all displacement conditions than the 7th Generation and STb (all p < 0.001). No significant difference in SFF existed between the In-Ovation L and STb for a 2-mm GD of the MXC and 2-mm PD of the MXLI. A 2-mm GD of the MXC produced higher SFF and KFF than a 2-mm PD of the MXLI in all brackets (all p < 0.001). Conclusions: CLLBs with narrow bracket widths exhibited higher KFF than SL-LBs under tooth displacement conditions. CL-LBs and ligation methods should be developed to produce SFF and KFF as low as those in SL-LBs during the initial and leveling stage.
목차
INTRODUCTION
MATERIALS AND METHODS
RESULTS
DISCUSSION
CONCLUSION
REFERENCES
참고문헌 (23)
참고문헌 신청
Fujita K. New orthodontic treatment with lingual bracket mushroom arch wire appliance. Am J Orthod 1979;76:657-75.
Smith JR, Gorman JC, Kurz C, Dunn RM. Keys to success in lingual therapy. Part 1. J Clin Orthod 1986;20:252-61.
Creekmore T. Lingual orthodontics--its renaissance. Am J Orthod Dentofacial Orthop 1989;96:120-37.
Moran KI. Relative wire stiffness due to lingual versus labial interbracket distance. Am J Orthod Dentofacial Orthop 1987;92:24-32.
Takemoto K. Lingual orthodontics extraction therapy. Clin Impr 1995;4:2-7,18-21.
Smith JR, Gorman JC, Kurz C, Dunn RM. Keys to success in lingual therapy. Part 1. J Clin Orthod 1986;20:252-61.
Creekmore T. Lingual orthodontics--its renaissance. Am J Orthod Dentofacial Orthop 1989;96:120-37.
Moran KI. Relative wire stiffness due to lingual versus labial interbracket distance. Am J Orthod Dentofacial Orthop 1987;92:24-32.
Takemoto K. Lingual orthodontics extraction therapy. Clin Impr 1995;4:2-7,18-21.
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UCI(KEPA) : I410-ECN-0101-2016-515-002728897