Effectiveness of partial extraction technique used to preserve ridge before immediate implantation
Accepted: 17 January 2022
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Aim Although partial extraction technique (PET) is an exciting emerging technique, there is still minimal evidence regarding its effectiveness in preserving the buccal cortical bone simultaneously with immediate implant insertion. The present study aimed to systematically evaluate the available clinical data concerning PET before immediate implantation.
Material and methods A comprehensive systematic search was conducted which included a simple search strategy, using different electronic databases. Fourteen selected clinical human studies (7 clinical trials and 7 case series) out of 139 were included. The data retrieved from the selected studies included: study design, sample size, age, gender, study setting, site andside of technique application, author’s names, journal title, year of publication, statistical tests used, and follow up prognostic results. Accuracy was confirmed by three researchers whom assessed all collected data.
Results There were 619 implants inserted using the PET in the included studies ,96.6 % of them were performed on the maxillary anterior and premolars region. The patients' age ranged from 24 to 83 years. Follow up ranged from 12 to 60 months. Implant failure was reported in 1.6% of the cases, infection in 1% and 3.1% had shield exposure and resorption problems. Clinical esthetic parameters and other radiographic evaluations revealed comparable results in favor of PET over conventional post extraction implant placement techniques.
Conclusion Based on the results of this review, the PET provided clinically acceptable results regarding ridge preservation in the esthetic zone of the maxillary anterior teeth. Future randomized controlled studies are needed to confirm the efficacy of this technique in different places of the jaw.
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