[問題] 臨床三第36題
(A)上頷主要收壓區僅在殘脊上方...
在第338頁右下寫到
the crest area of the residual ridge will become
the primary stressing area to vertical directed force.
some resistance to these forces may be obtained
by immediate buccal and lingual slopes of the ridge.
這樣不知道可不可以說creat of residual ridge不是唯一
不過C一定不對,因為在上面一段有寫到buccal shelf&ridge的斜坡下頷的主要受壓區
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