Objective:To study therapeutic effects about dentin allergy in two different ways:TMKN gels for desensitization, and MDC 500 semi conductor laser therapeutic machine.
2
目的报告一种体积小，功能多的便携式口腔光导治疗机及光导口腔系列器械的研制。
Objective To develop a versatile and convenient carrying oral optical fiber multifunction dental unit.
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