1.Results A two-year follow-up revealed there occurred butment caries,luxated butment,and overlain residual root gingivitis,even on the rise,while the alveolar ridge showed no uneven absorption.
结果基牙根龋、基牙松、覆盖残根牙龈炎随时呈递增趋势,而牙槽嵴则无不均匀吸收。
2.Methods By adhering the bracket to the movable teeth and holding the butment erect or adjusting edentulous space depend on different clinical needs.