??
????????P??????I??????????????????????
??peridentalcystanddentigerouscyst????????????????
????????????????
??????????????????????????????????
?????X??????????????????????????????
???????????????????
???????????X????????????????
??
????????????????
??????????1?1?????????18??
??peridentalcystanddentigerouscyst????????????????
????????????????
??????????????????????????????????
?????X??????????????????????????????
???????????????????
???????????X????????????????
??
????????????????
??????????1?1?????????18??