Klavan B
J Periodontol. 1975 Jan;46(1):1-5. doi: 10.1902/jop.1975.46.1.1.
Thirty-four maxillary molar teeth were evaluated from 11 to 84 months after root amputation. The most consistent finding was that although 24 were neither splinted nor supported in any way, only three developed mobility. Two of these were used as abutments for partial dentures. One other tooth was extracted due to recurrent lateral abscesses and subsequent involvement of the mesial furca.
对34颗上颌磨牙在进行牙根切断术后11至84个月进行了评估。最一致的发现是，尽管其中24颗牙未作任何方式的夹板固定或支持，但只有3颗牙出现了松动。其中两颗牙用作局部义齿的基牙。另一颗牙因反复出现侧方脓肿以及随后累及近中根分叉而被拔除。
