Results:The mental state, RPP value from cardiovascular patients, the blood sugar value of diabetics, as well as the doctor s operation are the main factor.

• 结果:老年患者的拔牙心理、合并心血管病患者RPP值、糖尿病患者血糖值、医生的操作等,是影响老年患者拔牙安全的主要因素。