Even if form alters function in cases in which parafunction is a causative factor, relying on form alone to alter pathological function can result in an unacceptable restorative failure rate.

• 即使在一些病例中，形式可以改变功能，一些功能异常可能是因为形式引起。但是单纯地依靠改变牙齿的外形来希望改变病理过程可能会引起不可能接受的修复体制作失败。