請問關於dental implant - 口腔醫學資訊,議題討論

※ 引述《decay2 (decay)》之銘言：
: ※ 引述《rabbi (阿德)》之銘言：
: : 請問一下
: : dental implant 所謂 one piece design 和 two piece design
: : 是什麼意思 有什麼作用 (我不太清楚這詞 可能提問的不好)
: : 另外google出一堆英文又發現submerged 和 non-submerged 等詞
: : 又是代表什麼意思呢
: : 麻煩各位解說 謝謝!!
: one piece design是指手術完後直接露出在牙齦外(non-submerged),
: 而two piece design是指手術完後齦把整個植體包覆(也就是submerged),
: non-submerged的好處是在接abument時不用再切開牙齦, 減少病人再一次的疼痛,
: 但因為植牙手術完後就外露出來, 也相對增加感染的風險, 兩者各有利弊.
以我個人的認知 上面說的這些最正確的名稱應該是one stage和two stage
所謂的dental implant其實包含fixture和abutment
one piece應該是fixture和abutment一體成形

我的根據是
http://medical-dictionary.thefreedictionary.com/two-piece+implant
two piece implant的定義是either end-osteal or subperiosteal, having its
infrastructure and abutment in separate parts. Generally, the abutment,
which is threaded, is screwed to the infrastructure some weeks after its
incision, so that healing has taken place.

two stage implant的定義是an endosseous implant placed in the bone, with
the soft tissue over the implant being sutured closed in a stage-one
surgery to allow osseointegration of the implant. A second surgery is
performed later in which the soft tissue over the submerged implant is
removed in order to thread an abutment into the implant so that a
prosthesis can be attached; also known as a submergible implant.

至於non-submerged應該就是所謂的one stage
傳統的ITI算是一個很好的例子
他有一段1.8mm或2.8mm的smooth surface是在bone level之上
讓fixture和abutment交接的microgap遠離bone
有些人的論點是這可以減少bone的吸收
這是我比較能認同的觀點
one stage implant的話ITI是我的首選

一般傳統two stage implant由於microgap在bone level
所以有發展出platform switch
不過細菌會不會因為你把microgap往內縮就跑不過去
我個人是不相信啦
當然這個見仁見智

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