JOURNAL OF SHANDONG UNIVERSITY (HEALTH SCIENCES) ›› 2017, Vol. 55 ›› Issue (3): 54-58.doi: 10.6040/j.issn.1671-7554.0.2016.811

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Animal studies of the impact of initial stability on the immediate implantation success rate

CHANG Fei1, JIANG Baoqi2, DONG Zuoqing1, LIU Jia3, XU Xin2   

  1. 1. Department of Oral and Maxillofacial Surgery Qilu Hospital of Shandong University, Qingdao 266000, Shandong, China;
    2. School of Stomatology, Shandong University, Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Jinan 250012, Shandong, China;
    3. Public Health and Health Management, Yanjing Medical College, Capital Medical University, Beijing 101300, China
  • Received:2016-07-08 Online:2017-03-10 Published:2017-03-10

Abstract: Objective To observe the influence of initial stability on HA coating, soft tissue level and root form implant success rate, in order to provide theoretical basis for clinical surgery. Methods The planting sites in adult mongrel dogs bilateral mandibular posterior tooth areas were randomly divided into experimental group(ISQ<50)and control group(ISQ>65). The implant ISQ value at the time of the implanting, week 4, 8 and 12 were measured and recorded. Meanwhile, CT scan was performed on each animal. The rates of implant osseoiniegration under light-microscopy were computed to observe the impact of different values of ISQ on immediate implantation success rates. Results The initial ISQ values of immediate implant BLB explants ranged 28-49, with corresponding implantation torque values of 10-20 N. There was no significant difference in immediate implantation success rate between the two groups. After 3 months, no implants loosed or dropped. CT scan showed no significant difference in bone density around the implant and implant-bone binding rates between the two groups(P>0.05). Conclusion The initial ISQ values of the immediate implant BLB explants range 28-49 or 68-75, with corresponding implantation torque values being 10-20 N or >30 N. There is no significant difference in the success rates.

Key words: Implant osseointegration rate, Insertion torque value, ISQ value, Hard tissue section, Initial stability, Immediate implantation

CLC Number: 

  • R574
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