Objective: To study the energy relieving effect of using artificial plastic or ceramic teeth in mandibular implant-supported overdenture.

前言：目的：比较分析应用塑料牙与瓷牙对全下颌种植覆盖总义齿及其支持组织的能量缓冲作用。

youdao

This takes a little while to switch all of your plastic storage containers over to ceramic, glass or stainless steel but its definitely worthwhile.

把你所有的塑料存储容器换成陶瓷的，玻璃的，或者不锈钢的你会浪费你一点时间。但这绝对是值得的。

youdao

The back is entirely flat, made of either glass (more likely) or ceramic or shiny plastic in order for the cell signal to poke through.

背部全平，材质为玻璃或塑料(更像是玻璃)以保证手机信号通过。

youdao

The MHRA said all-metal hips had a failure rate of about 12% after seven years, three times that of metal and plastic or ceramic hips.

BBC: Annual checks for patients with all-metal hips

Some 49, 000 patients in the UK have these implants and they've been shown to have a much higher failure rate than metal and plastic or ceramic implants.

BBC: Annual checks for patients with all-metal hips

That compares with just 1.7 to 2.3 percent of people who had ceramic or plastic joints.

NPR: Trial Under Way In LA Hip Joint Replacement Suit