CAJ | 학술논문

封闭开放的牙本质小管口是现代牙本质敏感（DH）治疗的基本指导思想，而大多数传统的治疗方法仅短期内有效，其原因可能缘于咀嚼和磨损等导致牙体表面脱敏剂涂层再次磨耗。以1.5?W、396?J·cm-2的钕：钇-铝石榴石（Nd：YAG）激光治疗，DH的牙本质小管口的封闭率达到90%以上，牙本质表面也不会出现凹坑、裂纹和碳化等破坏。Nd：YAG激光照射引起的局部温度升高，若髓腔温度升高在5?℃以内，牙根表面温度升高在10?℃以内则不会损伤牙髓和牙周组织。Nd：YAG激光治疗DH见效迅速、疗效明显，但影响其治疗的因素主要有患者畏惧、治疗风险、设备局限和成本高昂等。在Nd：YAG激光治疗DH的过程中，要注意患者和施术者眼睛的防护。
봉폐개방적아본질소관구시현대아본질민감（DH）치료적기본지도사상，이대다수전통적치료방법부단기내유효，기원인가능연우저작화마손등도치아체표면탈민제도층재차마모。이1.5?W、396?J·cm-2적녀：을-려석류석（Nd：YAG）격광치료，DH적아본질소관구적봉폐솔체도90%이상，아본질표면야불회출현요갱、렬문화탄화등파배。Nd：YAG격광조사인기적국부온도승고，약수강온도승고재5?℃이내，아근표면온도승고재10?℃이내칙불회손상아수화아주조직。Nd：YAG격광치료DH견효신속、료효명현，단영향기치료적인소주요유환자외구、치료풍험、설비국한화성본고앙등。재Nd：YAG격광치료DH적과정중，요주의환자화시술자안정적방호。
Closing?dentinal?tubule?is?the?basic?guiding?idedogy?in?the?treatment?of?dentin?hypersensitiveness(DH),?but?most?of?the?traditional?methods?only?have?a?short-term?effect?due?to?chew?and?wear?of?the?desensitization?agent?coating?on?dentin?surface.?However?using?neodymium:yttrium-aluminum-garnet(Nd:YAG)?laser?in?the?treatment?of?DH?can?reach?a?more?than?90%?dentinal?tubule?closure?rate,?and?no?pits,?cracks?and?carbonization?destruction?appear?in?dentin?surface?when?the?laser?parameter?is?1.5?W,?396?J·cm-2.?When?the?temperature?increment?caused?by?laser?irradiation?does?not?exceed?5?℃for?pulp?chamber,?and?the?increment?of?root?surface?does?not?exceed?10?℃,?it?won’t?cause?any?damage?to?the?tooth?pulp?and?periodontal?tissue.?Using?Nd:YAG?laser?in?the?treatment?of?DH?can?reach?quick?and?obvious?curative?effect,?but?there?are?also?obstructive?factors?in?the?application?of?Nd:YAG?laser?such?as?dental?fear,?treatment?risks,?instrument?limitations?and?the?high?costs.?And?in?the?process?of?using?Nd:YAG?laser,?attention?should?be?paid?to?the?protection?of?eyes?of?patients?and?operators.