Survival rate and various clinical indicators of implant restoration in chronic periodontitis / 中国基层医药

ABSTRACT

Objective To investigate the influence of chronic periodontitis on implant survival rate and clinical indicators after implant restoration .Methods The chronic periodontitis dentition defect 50 patients ( group A ) and periodontal health dentition defect 50 patients (group B) with implant prosthesis were selected as the study objects . The implant retention and the amount of marginal bone loss , improved plaque index , modified bleeding index and probing depth at 3 months,6 months,12 months and 24 months after restoration were observed .Results The implant survival rate of group A (93.9％) and group B (95.7％) had no statistically significant difference (χ2 =0.339,P>0.05).The amount of marginal bone loss of group A at 3 months,6 months,12 months and 24 months were (0.41 ± 0.12)mm,(0.99 ±0.14)mm,(1.16 ±0.32)mm,(1.25 ±0.43)mm,respectively,which of group B were (0.38 ± 0.09)mm,(0.87 ±0.25)mm,(1.08 ±0.27)mm,(1.19 ±0.49)mm,respectively,the differences were not statisti-cally significant (t=0.712,0.613,0.426,0.412,all P>0.05).The modified plaque index of group A at 3 months, 6 months,12 months and 24 months were (1.14 ±0.12),(1.21 ±0.38),(1.38 ±0.21),(1.41 ±0.26),respectively,which of group B were (0.97 ±0.08),(1.18 ±0.34),(1.27 ±0.29),(1.35 ±0.22),the differences were not statistically significant (t=0.869,0.683,1.521,0.967,all P>0.05).The modified bleeding index of group A at 3 months, 6 months,12 months and 24 months were (0.34 ±0.09),(0.41 ±0.05),(0.64 ±0.13),(0.71 ±0.12),respectively,which of group B were (0.36 ±0.07),(0.44 ±0.12),(0.56 ±0.11),(0.62 ±0.14),the differences were not statistically significant (t=0.758,0.534,1.021,0.784,all P>0.05).The probing depth of group A at 3 months,6 months, 12 months and 24 months were (1.57 ±0.23) mm,(1.97 ±0.38) mm,(2.01 ±0.32) mm,(2.05 ±0.28) mm,respectively,which of group B were (1.48 ±0.16)mm,(1.81 ±0.33)mm,(1.83 ±0.37)mm,(1.84 ±0.31)mm, the differences were not statistically significant (t=0.783,0.934,0.376,0.745,P>0.05).Conclusion Chronic periodontitis with implant prosthesis treatment after periodontal therapy has no significant effect on implant retention rate and marginal bone loss ,improved plaque index ,modified bleeding index and probing depth .