Judging from the appearance change during degradation, PGLA barrier has a better appearance retention than PGA barrier.
从外观上，PGLA牙周片降解过程中的形态保持比PGA牙周片好。
In order to study the biodegradable properties and biological safety of PGLA film for periodontal guided tissue regeneration in vitro.
目的是研究pgla牙周引导组织再生片的生物降解性和安全性。
The degradation courses of PGA and PGLA GTR Barriers in vitro are chemical degradation processes, which achieved by hydrolysis of ester bond.
PGA和PGLA牙周再生片的降解都是通过酯键的水解来实现，是一个化学降解的过程。
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