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A study on change of papilla height between posterior single implant and natural teeth.
EAO Online Library. Park J. Oct 9, 2018; 232488; P- PB- 35
Joon Seok Park
Joon Seok Park
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Abstract
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Implantation has been used as one of the most important treatment for the recovery of lost teeth and also has already achieved a satisfactory success rate in many studies. The success factors of implants are considered in variable ways, one of them is the importance of harmonious relationship between implant prosthesis and surrounding soft tissue. This is important not only in aesthetic side, but also in influence on oral hygiene care.The purpose of present study was to observe the change of interdental papilla height(PH) between posterior single implant and natural teeth after final implant prosthesis and to discuss the necessity of subsequent treatment and the point of treatment required.After implantation of Astra single implant and completing prosthesis, change of papilla height(PH) during 3-years was measured. Retrospective studies were performed using periapical radiographs taken from 2008 to 2015. Only the sites that rehabilitated by posterior single implant adjacent to the natural teeth were included. 48 implants in 31 patients were included, except for patients who observed clear inflammatory findings during the periodic check.**The distance between the radiopaque material on most coronal portion of the papilla and the most coronal portion of the crestal bone was measured (PH) by periapical radiographs taken each visit. Six sections were set as the difference value between the points at a total of 7 observation points (before second-surgery, immediately after completion of prosthesis, 1 month, 6 months, 1 year, 2 years, 3 years each) and statistically analyzed using a linear mixed model and post-hoc analysis (multiple comparisons- bonferroni correction).Amount of change**There was a statistically significant difference between mean of change amount of section1 and section 2 versus baseline point (p<.0001) and there was no significant difference after that. So after point of PH3, it can be seen that the change in the amount of change compared to baseline time is reduced.**Rate of change**There was a statistically significant difference between rate of change of section1 and section2(p<.0001), section2 and section3(p<0.0355). After point of PH4, it can be seen the change in the rate of change compared to baseline time is reduced.**Ratio versus baseline**There was a statistically significant difference between mean of ratio versus baseline of section1 and section2(p<.0001), section2 and section3(p<.0355). After point of PH4, it can be seen the change in the rate of change compared to baseline time is reduced.According to above results, the change of papilla height decreased after 1 month of prosthesis delivery, and the rate of change and ratio versus baseline decreased after 6 months of prosthesis delivery. **After 6 months of final prosthesis, the papilla height seems to stabilize when compared to baseline point. Therefore, if a papilla-related procedure is needed from aesthetic and hygienic point of view, it is desirable to establish a treatment plan after 6 months of prosthesis delivery.
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