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  3. School of Dentistry / 牙醫專業學院
  4. Clinical Dentistry / 臨床牙醫學研究所
  5. Effect of Sand-blasted, Large grit, Acid-etched Combined Alkaline, Acid, Heat Surface Treatment on Osteointergartion of Dental Implant: Animal study
 
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Effect of Sand-blasted, Large grit, Acid-etched Combined Alkaline, Acid, Heat Surface Treatment on Osteointergartion of Dental Implant: Animal study

Date Issued
2012
Date
2012
Author(s)
Chang, Sheng-Wei
URI
http://ntur.lib.ntu.edu.tw//handle/246246/257990
Abstract
Since 1970s, replacement of missing teeth with dental implant has become a popular treatment option in dental treatment. The successful implant depended on the osseointegration between implant and bone which took a period of time for healing. Various surface treatment schemes on dental implant have being developed in order to hasten osseointegration thus shorten the healing time. Surface treatment scheme using sand-blasted, large grit, acid-etched surface treatment (SLA) has been proposed used for a period of time; however, SLA treated implant still need more healing time for osteointergration. Recently, a new surface treatment scheme using alkaline, acid and heat surface treatment (AAH) surface treatment has been proposed. The purpose of this study is to evaluate the effect of two new surface treatments (Sand-blasted ,Large grit, Acid -etched combined Alkaline ,Acid , Heat surface treatment(SLA+AAH)) on osseointegartion. Three different surface treatment implants with two type screw design, one surface treatment is SLA+AAH surface treatment type, the other is SLA (Sand-blasted, Large grit, Acid etched),with same screw design and TiUnite (Nobel Biocare - NP) were compared. Nine beagle dogs were enrolled in this study, divided into 3 groups (4, 8, 12 weeks), six dental implants were inserted in each dog included two experimental groups(SLA+AAH) and two control group(SLA and TiUnite). The assessments of implants are including clinical evaluation, survival rate, resonance frequency test and photo record. Experimental parameters including resonance frequency test(ISQ), bone implant contact (BIC) ,remove torque test were used to analysis the integration of bone and implant. The dogs were sacrificed at the time interval of 4, 8, 12 weeks for further histological analysis. In 8weeks group , implants were placed in tibia for removal torque test. The results showed the value of SLA+AAH surface treatment group in resonance frequency test is slightly higher than SLA group and TiUnite group . It seems that the potential for SLA+AAH chemical modification of the implant surface may possess good biologic events during the osseointegartion process and offer some superiority to implants with the SLA and TiUnite surface. Further study is needed to distinguish the variables for hastening of osseointegartion with modality of new surface treatment.
Subjects
osseointegration
SLA+AAH
Ti Unite resonance frequency test(ISQ)
bone implant contact (BIC)
Type
thesis
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