Jayaprakash Poonam K, Basavanna Jayaprakash Mugur, Thakur Rudra Pratap Singh, Kannan Sridhar, Singh Ningombam Robinson, Kalra Hiten
Department of Orthodontics and Dentofacial Orthopedics, Kothiwal Dental College and Research Center, Mora Mustaqueem, Moradabad, Uttar Pradesh, India.
Department of Prosthodontics, Dental Institute, RIMS, Ranchi, Jharkhand, India.
J Family Med Prim Care. 2020 Jan 28;9(1):77-81. doi: 10.4103/jfmpc.jfmpc_383_19. eCollection 2020 Jan.
The aim of this study was to comparatively evaluate stability changes in palatal implants during the early stages of bone healing with chemically modified sandblasted/acid-etched (modSLA) titanium surface compared with a standard sandblasted (SLA) titanium palatal implants.
A statistically significant number ( = 40; 24 females and 16 males) of adult subjects who volunteered and have their informed consent for participating in the study were selected. These volunteers were randomly allocated to the experimental group (modSLA surface) and to the control group (SLA surface) with 20 subjects in each group. Documentation of implant stability was done by assessing resonance frequency analysis (RFA) at implant insertion, followed by subsequent assessments each week till 12 week from baseline (1-12 weeks). RFA values were expressed as an implant stability quotient (ISQ).
Immediately after installation of implant, the ISQ values for both surfaces tested were not significantly different and yielded mean values of 75.28 ± 5.23 for the control and 73.16 ± 4.81 for the test surface. In the first 2 weeks after implant installation, both groups presented only small changes and thereafter a reducing trend in the mean ISQ levels. In the test group, after 4 weeks a tendency toward increasing ISQ values was observed, and 6 weeks after surgery the ISQ values corresponded to those after implant insertion. For the SLA control group, the trend changed after fifth week and yielded ISQ values corresponding to the baseline after ninth week. After 12 weeks of observation, the test surface yielded significantly higher stability values of 78.68 ± 2.9 compared with the control implants of 75.5 ± 3.19, respectively.
The results undoubtedly support and validate the potential for chemical modification of the SLA surface to positively influence the biologic process of osseointegration and also a faster healing.
本研究旨在比较评估与标准喷砂（SLA）钛腭部种植体相比，化学改性喷砂/酸蚀（modSLA）钛表面在骨愈合早期阶段腭部种植体的稳定性变化。
选择了数量具有统计学意义（n = 40；24名女性和16名男性）的成年志愿者，他们自愿参与并签署了知情同意书。这些志愿者被随机分为实验组（modSLA表面）和对照组（SLA表面），每组20名受试者。通过在种植体植入时评估共振频率分析（RFA）来记录种植体稳定性，随后每周进行后续评估，直至基线后的12周（第1 - 12周）。RFA值以种植体稳定性商数（ISQ）表示。
种植体植入后即刻，两个测试表面的ISQ值无显著差异，对照组的平均值为75.28 ± 5.23，测试表面为73.16 ± 4.81。在种植体植入后的前2周，两组的变化都很小，此后平均ISQ水平呈下降趋势。在测试组中，4周后观察到ISQ值有增加的趋势，手术后6周的ISQ值与植入后的值相当。对于SLA对照组，趋势在第5周后发生变化，第9周后的ISQ值与基线相当。经过12周的观察，测试表面的稳定性值显著高于对照组，分别为78.68 ± 2.9和75.5 ± 3.19。
结果无疑支持并验证了SLA表面化学改性对骨整合生物学过程产生积极影响以及促进更快愈合的潜力。
