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: The coefficients of friction (COFs) of aesthetic ceramic and stainless steel brackets used in conjunction with stainless steel archwires were investigated using a modified linear tribometer and special computer software, and the effects of the bracket slot size (0.018 inches [in] or 0.022 in) and materials (ceramic or metal) on the COF were determined. Methods: Four types of ceramic (one with a stainless steel slot) and one conventional stainless steel bracket were tested with two types of archwire sizes: a 0.017 × 0.025-in wire in the 0.018-in slots and a 0.019 × 0.025-in wire in the 0.022-in slot brackets. For pairwise comparisons between the 0.018-in and 0.022-in slot sizes in the same bracket, an independent sample t-test was used. One-way and two-way analysis of variance (ANOVA) and Tukey’s post-hoc test at the 95% confidence level (α = 0.05) were also used for statistical analyses. Results: There were significant differences between the 0.022-in and 0.018-in slot sizes for the same brand of bracket. ANOVA also showed that both slot size and bracket slot material had significant effects on COF values (p < 0.001). The ceramic bracket with a 0.022-in stainless steel slot showed the lowest mean COF (m = 0.18), followed by the conventional stainless steel bracket with a 0.022-in slot (m = 0.21). The monocrystalline alumina ceramic bracket with a 0.018-in slot had the highest COF (m = 0.85). Conclusions: Brackets with stainless steel slots exhibit lower COFs than ceramic slot brackets. All brackets show lower COFs as the slot size increases.
목차
INTRODUCTION
MATERIALS AND METHODS
RESULTS
DISCUSSION
CONCLUSION
REFERENCES
참고문헌 (29)
참고문헌 신청
1. [학술지(정기간행물)] - Frank CA / 1980 / A comparative study of frictional resistances between orthodontic bracket and arch wire / Am J Orthod 78 : 593 ~ 609
2. [학술지(정기간행물)] - Braun S / 1999 / Friction in perspective / Am J Orthod Dentofacial Orthop 115 : 619 ~ 627
3. [학술지(정기간행물)] - Cacciafesta V / 2003 / Evaluation of friction of stainless steel and esthetic self-ligating brackets in various bracket-archwire combinations / Am J Orthod Dentofacial Orthop 124 : 395 ~ 402
4. [학술지(정기간행물)] - Drescher D / 1989 / Frictional forces between bracket and arch wire / Am J Orthod Dentofacial Orthop 96 : 397 ~ 404
5. [학술지(정기간행물)] - Read-Ward GE / 1997 / A comparison of self-ligating and conventional orthodontic bracket systems / Br J Orthod 24 : 309 ~ 317
2. [학술지(정기간행물)] - Braun S / 1999 / Friction in perspective / Am J Orthod Dentofacial Orthop 115 : 619 ~ 627
3. [학술지(정기간행물)] - Cacciafesta V / 2003 / Evaluation of friction of stainless steel and esthetic self-ligating brackets in various bracket-archwire combinations / Am J Orthod Dentofacial Orthop 124 : 395 ~ 402
4. [학술지(정기간행물)] - Drescher D / 1989 / Frictional forces between bracket and arch wire / Am J Orthod Dentofacial Orthop 96 : 397 ~ 404
5. [학술지(정기간행물)] - Read-Ward GE / 1997 / A comparison of self-ligating and conventional orthodontic bracket systems / Br J Orthod 24 : 309 ~ 317
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UCI(KEPA) : I410-ECN-0101-2016-515-001060998