Results

According to the search strategy a total of 116 studies were recognized. According to the inclusion and exclusion criteria, ten articles were finally included after manual screening and evaluation. All the included studies were randomized controlled trials. Figure 2 shows that the initial computerized search strategy that yielded the 10 included studies. Table 1 presents a brief description of the 10 articles analyzed in terms of treatment population, intervention applied and comparison and the overall outcome. All the 10 studies showed significant result in terms of improvement on the healing time/recovery time and pain reduction. Results for each intervention are discussed briefly below and should be read in concert with the details shown inTable 2 . In general, although all of the included studies mentioned the randomized allocation of participants, none of the trials described the methods of sequence generation, allocation concealment, and blinding. As previously mentioned, the risk of bias of individual studies was independently assessed by both two authors using the Cochrane Risk of Bias assessment tool. The findings were shown on