Purpose: To provide the best available evidence on the outcome of CR and RR procedures.
Materials and methods:
•A search was conducted by using three electronic databases ( PubMed, Scopus and Cochrane Library ).
•Two reviewers independently assessed the quality of the included studies. •The time frame was from 1966 to march 2018
• Inclusion criteria:
•1- Studies investigating outcome of CR and RR for ETT
•2- Minimum of 12 months follow up
•3- Data can be extracted from the study or obtained by personal communication with the author.
•4- RCT, prospective or retrospective case study.
•1- Studies that no outcome investigations
•2- Review or option article
•3- Follow up period less than 12 months
•4- Data cannot be extracted from the article nor from the author.
•5- Case reports or case series < 10 as s sample size
•19 studies were included in this meta-analysis.
Most highlighted results:
•An overall pooled survival rate of 85.61% for both CR and RR procedures combined.
•Individual data showed mean survival rate of 81.9% for CR and 87.2% for RR.
•There was no statistically significant difference between CR and RR or between maxillary and mandibular molars.
Clinical significance: Crown resection and root resection shows high survival rate and can be considered as a treatment of choice.