ABSTRACT
Objective To analyze the effect of one-part form mini-implant in treatment of immediately and delayed repair of edentulous space. Methods Retrospectively analyzed 80 cases of edentulous space patients in our hospital from Jan. 2009 to Jan. 2011, and divided them into the immediately repair group ( observation group) and the delayed repair group ( control group) according to time of edentulous space repair. Patients of the two groups were given permanent PFM 3 months later, and regular clinical and X-ray examinations were made to evaluated clinical efficacy and complications of the two groups. Results The score of ISQ of the observation group was higher than that in the control group with significant difference (P <0. 05); and the postoperative complications of the observation group was significantly decreased compared to the control group with a significant difference (P <0. 05). Conclusion Mini-implant used in immediately repair in edentulous space can remove pain in a short time with less postoperative complications, it has more advantages than delayed repair of edentulous space.
ABSTRACT
Objective:To assess the clinical efficacy of two different diameter Osstem MS one-stage implant restoration of small edentu-lous space in the mandibular anterior region.Methods:85 patients were treated by Osstem MS one-stage implant with the diameter of 2.5 mm(n =66)and 3.0 mm(n =66)respectively for the restoration of small edentulous space in mandibular anterior region.The mesi-al and distal marginal bone level and soft tissue were statistically analyzed after 1 2 and 24 months of functional load.The implant survival rate was evaluated according to Wheeler's survival criteria.Results:The survival rate of the implants was 1 00%.The mean changes in marginal bone level(mm)on the mesial side of 2.5 mm and 3.0 mm diameter implants were 0.275 ±0.638 and 0.098 ±0.31 9,distal aspects were 0.360 ±0.588 and 0.1 09 ±0.323 after 1 2 months of functional load;while 0.299 ±0.672 and 0.099 ±0.31 8,0.381 ± 0.581 and 0.1 07 ±0.31 9 after 24 months of functional load.The mesial and distal marginal bone loss of 2.5 mm diameter implant was greater than that of 3.0 mm after 1 2 and 24 months of functional load(P 0.05).No relevant complication of peri-implant soft tissue was shown.Conclusion:Favorable clinical effects including function and aesthetics can be achieved by Osstem MS one-stage implant with the diameter of 2.5 mm or 3.0 mm for the restoration of small edentulous space in the mandibular anterior region,however,the mar-ginal bone loss was greater around 2.5 mm diameter implant.