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Year : 2020  |  Volume : 20  |  Issue : 2  |  Page : 153-161

Role and influence of growth factors on early osseointegration in animal jaw bone: A meta-analysis

1 Department of Prosthodontics, Maulana Azad Institute of Dental Sciences, New Delhi, India
2 Department of Public Health Dentistry, Maulana Azad Institute of Dental Sciences, New Delhi, India
3 Department of Prosthodontics, Guru Gobind Singh Indraprastha University, New Delhi, India

Correspondence Address:
Dr. Radhika A Jain
Department of Prosthodontics, Maulana Azad Institute of Dental Sciences, MAMC Complex, Bahadur Shah Zafar Marg, New Delhi - 110 002
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jips.jips_385_19

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Aim: Growth factors (GFs) are polypeptides, which are intricately involved in the regulation of bone formation, preservation, and regeneration through gene expression. However, the role of these bioactive agents in osseointegration of dental implants has not been substantially proven. The objective of this systematic review (SR) and meta-analysis was to explore the effect of GFs on early osseointegration of dental implants in animal jaws. An attempt to decipher an adjunctive role of GFs in modulating predictable bone growth in peri-implant areas was done. Materials and Methods: An electronic and manual search of different databases was performed. Only randomized controlled trials (RCTs) were included and reviewed. The risk of bias (ROB) of the selected studies was assessed using the SR Centre for Laboratory Animal Experimentation (Cochrane) tool. A meta-analysis was also performed to evaluate the different study characteristics quantitatively. Statistical Analysis used: The total Weighted mean difference was evaluated using the Rev-Manv5.3 algorithm. Chi-square test and I2 test were done to assess the heterogeneity between the studies. ] Results: Seven RCTs were included in the study. These were associated with a high ROB. The total weighted mean difference (WMD) of the percentage of bone–implant contact was 3.25% (95% confidence interval [CI] = 1.49%–6.03%; P = 0.001; I2= 91%) between groups with and without exogenous application of GFs. The total WMD of the percentage of newly formed bone area was 4.48% (95% CI = 2.31%–5.90%; P < 0.00001, I2= 84%). A high level of heterogeneity (P < 0.001 for Chi-square test; I2>50 %) among comparable studies was observed. Conclusion: The ancillary application of external GFs exhibited evidence of early osseointegration, resulting in more predictable and faster results. However, a careful discernment of conclusions drawn from this SR is a must before conducting any human trials.

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