Klemetti E
Department of Prosthetics and Stomatognathic Physiology, University of Kuopio, Finland.
J Prosthet Dent. 1995 Mar;73(3):250-2. doi: 10.1016/s0022-3913(05)80201-x.
Histories and clinical evaluations were obtained from 230 postmenopausal women aged 48 to 56 years to determine whether the alveolar height in the edentulous anterior region of the maxillae is adversely affected by the presence of mandibular incisors. Many of these women lost their teeth in early adulthood. When all subjects were included, the height of the ridge in the anterior region of the maxillae was not significantly altered by presence of mandibular incisors. When the ridge height was compared among those who had been edentate in the maxillae for less than 30 years, the difference between dentate and edentate subjects was significant. This study indicates that the alveolar ridges in the anterior region of the maxillae where teeth were extracted early in life during the rapid phase of bone metabolism are less disposed to bite trauma caused by the presence of the mandibular incisors than are individuals who lost their teeth in middle or old age.
对230名年龄在48至56岁之间的绝经后女性进行了病史采集和临床评估，以确定上颌无牙前区的牙槽高度是否受到下颌切牙的不利影响。这些女性中有许多人在成年早期就掉牙了。当纳入所有受试者时，下颌切牙的存在对上颌前区牙槽嵴的高度没有显著影响。当比较上颌无牙时间少于30年的受试者的牙槽嵴高度时，有牙和无牙受试者之间的差异显著。这项研究表明，在生命早期骨代谢快速阶段拔牙的上颌前区牙槽嵴，比在中年或老年失牙的个体更不容易受到下颌切牙存在所导致的咬合创伤。
