Answer to check in time right now , improper mobile false tooth should change in time , lest cause the absorption with tooth chamfer faster bone , atrophic 此时应及时复查，不合适的活动假牙应及时更换，以免引起牙槽骨更快的吸收，萎缩。
Due to the fact that dental implants are embedded to the jawbone , the fitting is consequently very stable , particularly noticeable during eating and speaking 因为是植入在牙槽骨上，种植牙较为坚固稳定，这一优点在进食和说话时尤其突出。
Results : established three model libraries in common use , including the alveolar - absorbed - teeth , lossed - teeth , and alveolar - reduced - area , 308 models in all 结果:分类建成3类是常用的模型阵、包括牙槽骨吸收牙、松动牙、以及缺牙区牙槽骨降低3类情况, 308个单元体。
Because be lengthened as what lack tooth time , bone of chamfer of tooth of the area that be short of a tooth is met gradually atrophic , become low , and speed of much place atrophy is abhorrent still 因为随着缺牙时间的延长，缺牙区牙槽骨会逐渐萎缩，变低，而且多部位萎缩速度还不一致。
Periodontal diseases are chronic diseases that invade gums , connective tissues and alveolar bone . it is caused by bacteria accumulated in the oral cavity when little attention is paid to oral hygiene 牙周疾病是一种侵犯牙牙周膜和牙槽骨的慢性破坏性疾病，主要是因为不注意口腔卫生，以致口腔里累积了许多细菌而引起的慢性牙疾病。
Results : there was no remarkable difference in the density of alveolar bone between men and women in 35 54 - year - groups ( p 0 . 05 ) , the alveolar bone density in men was heigher than that in momen in 55 64year - groups 结果： 35 54岁之间，男性与女性之间牙槽骨骨密度值无显著差异，而牙槽骨愈合速度有一定差异； 55 64岁年龄组男性牙槽骨骨密度值高于女性。
In the more severe stages of periodontal diseases , teeth can become loose and may even fall out and gums are red and swollen , and bleed easily . it does great harm to our health and it is one of diseases which result in tooth loss 此病的主要表现是牙红肿出血流脓牙槽骨吸收牙松动移位和咀嚼无力或酸痛，其危害性极大，是一种导致人类缺失牙的主要疾病之一。
