原著
ペリオテスト®を用いたインプラントの動的変化
―第6報 Key toothに着目したインプラント選択法―
1998 年 11 巻 2 号 p. 179-182
詳細
1998 年 11 巻 2 号 p. 179-182
Many cross arch prothesis cases had a lot of tooth loss with implantation. When an implant was selected the method of dental anatomical view was used. Another method that measures many natural teeth and implants by Periotest® was investigated and a new implant selecting concept of key tooth was developed.
The results were as follows:
1. Natural tooth (Key tooth)
1) Natural canine: 1.69 (n=341×4=1364, S.D.=3.99)
2) Natural molar teeth: 6.93 (n=132×16=2112,S.D.=0.87)
2. Implant (n=266)
1) Blade vent implant: 11.22 (n=11, S.D.=4.52)
2) Sumicikon®:6.00(n=42, S.D.=0.94)
3) Bonefit®:0.36(n=205, S.D.=0.66)
From just PT values result of Key tooth selecting method,
1. Blade vent implant value is higher than both part of natural tooth PT value. If Blade vent implant was chosen care of periodontal factor,connecting natural teeth, should be taken.
2. Data of natural posterior teeth approximated Sumicikon's by natural tooth connecting. Sumicikon® should be selected in posterior key tooth loss cases.
3. Data of natural incisal teeth approximated to Bonefit's. Posterial part should be selected for Bonefit® of free-standing type. Bonefit® should be selected in incisal key tooth loss and incisal key tooth loss cases. This material should be free-standing in posterior cases.
This method was used in many clinical cases.Good results were obtained, especially protheses that underwent periodontal maintenance by objective periodontal data.
