CAJ | 학술논문

目前，种植修复多采用两段式种植体，由于行使生理功能时的咀嚼负荷、制造的误差和种植体—基台连接处的微动，种植体—基台微间隙不可避免。微间隙在颌骨内的深度越深，种植体颈部周围牙槽骨吸收越多；内连接系统比外连接系统有更小的种植体颈部周围骨吸收，带锥度的内连接系统的骨吸收比对接式连接系统小；种植体—基台的密合性越好，种植体颈部周围牙槽骨的吸收越少；应用平台转移技术，可以有效地减少种植体颈部周围牙槽骨的吸收。种植体—基台微间隙对种植体颈部周围骨的影响主要是通过微间隙处的微渗漏和微动来实现的，微渗漏又分为细菌微渗漏和小分子微渗漏，细菌和小分子可以通过微间隙进入种植体内部定居、繁殖，成为种植体周围炎的一个感染灶，微动可以产生局部应力，并且促进微渗漏的发生。总之，在临床治疗中，对于对接式连接系统，选择微间隙平齐或者高于牙槽嵴水平的种植深度，对于带锥度的内连接系统，选择微间隙低于牙槽嵴顶水平的种植深度，尽量选择内连接系统和密合性较好的种植系统，合理应用平台转移技术，以达到保存种植体颈部周围牙槽骨的目的。本文就种植体—基台微间隙对种植体颈部周围牙槽骨的影响及机制作一综述。
목전，충식수복다채용량단식충식체，유우행사생리공능시적저작부하、제조적오차화충식체—기태련접처적미동，충식체—기태미간극불가피면。미간극재합골내적심도월심，충식체경부주위아조골흡수월다；내련접계통비외련접계통유경소적충식체경부주위골흡수，대추도적내련접계통적골흡수비대접식련접계통소；충식체—기태적밀합성월호，충식체경부주위아조골적흡수월소；응용평태전이기술，가이유효지감소충식체경부주위아조골적흡수。충식체—기태미간극대충식체경부주위골적영향주요시통과미간극처적미삼루화미동래실현적，미삼루우분위세균미삼루화소분자미삼루，세균화소분자가이통과미간극진입충식체내부정거、번식，성위충식체주위염적일개감염조，미동가이산생국부응력，병차촉진미삼루적발생。총지，재림상치료중，대우대접식련접계통，선택미간극평제혹자고우아조척수평적충식심도，대우대추도적내련접계통，선택미간극저우아조척정수평적충식심도，진량선택내련접계통화밀합성교호적충식계통，합리응용평태전이기술，이체도보존충식체경부주위아조골적목적。본문취충식체—기태미간극대충식체경부주위아조골적영향급궤제작일종술。
Two-stage?implant?systems?are?currently?adopted?in?most?implant?prostheses.?However,?an?implant-abutment?microgap?inevitably?forms?because?of?masticatory?load?under?physiological?function,?manufacturing?errors,?and?micromotion.?More?alveolar?bone?is?absorbed?when?a?deep?microgap?forms?in?the?jaw.?Additionally,?less?bone?is?resorbed?around?the?necks?of?implants?in?the?internal?connection?systems?than?in?the?external,?as?well?as?in?the?conical?internal?connection?systems?than?in?the?butt?joint?connection?systems.?Less?bone?is?also?resorbed?when?the?implants?and?the?abutments?are?highly?compatible.?Platform?switching?technology?can?effectively?reduce?alveolar?bone?absorption?around?the?necks?of?implants.?Implant-abutment?microgaps?mainly?affect?the?bones?around?the?necks?of?implants?via?micromotion?and?microleakage,?including?bacterial?and?molecular?leakages.?Bacteria?and?small?molecules?enter?the?interior?of?the?implants?through?the?microgaps,?settle?and?breed,?and?then?become?an?infection?focus?of?the?peri-implantitis.?Micromotion?generates?local?stress?and?promotes?microleakage.?To?preserve?the?alveolar?bone?around?the?necks?of?implants,?we?should?select?the?equicrestal?or?supercrestal?implant?depth?for?the?butt?joint?connection?systems?and?the?subcrestal?implant?depth?for?the?conical?internal?connection?systems?,?use?the?internal?connection?systems?and?implant?systems,?which?offer?good?compatibility,?and?then?apply?the?platform?switching?technology?reasonably.?This?study?aims?to?summarize?the?effect?of?implant-abutment?microgap?on?the?bone?surrounding?the?necks?of?implants,?including?its?mechanism.