Lyophilised amniotic membrane in intraoral surgical defects: A prospective clinical study

Abstract

Introduction: The incidence of infection and scarring in intraoral raw wounds are decreased when wounds are grafted with biological materials. The favourable results of many studies about amniotic membrane in wound healing inspired us to investigate the effects of lyophilised amniotic membrane in intaoral surgical defects. The aim of this study was to evaluate the healing of oral mucosal defects after application of lyophilised amniotic membrane (AM). Methods: Fifteen patients with oral precancerous lesions were included in this study. Lyophilised amniotic membrane was applied to the intraoral surgical defect, after wide excision of the lesion. The effectiveness of the lyophilised AM was evaluated by scoring the following parameters operability, haemostatic status, pain, feeding situation, epithelialisation, change in mouth opening, mucosal suppleness and safety. Results: The lyophilised amniotic membrane has been found to be effective in this study after evaluation of the parameters. No infection or allergic reaction was noticed after application of the lyophilised amniotic membrane in intraoral surgical defects. Discussion: In our study, the size and site of the surgical defect influenced the scar contracture so we suggest lyophilised AM may not prevent scarring for extensive surgical defects. All other findings regarding the effectiveness of lyophilised amniotic membrane in oral wound healing are in accordance with the findings of other studies conducted on hyperdry and cryopreserved AM. Conclusion: Within the limitations of the study, the results showed that the lyophilised amniotic membrane is a cost effective material for immediate coverage of the intraoral surgical defects.

Biological properties and surgical applications of the human amniotic membrane

“…However, the use of hyper dry AM in these procedures resulted in pain relief, good hemostatic status, adequate width of keratinized tissue, stabilization of dentures and a higher survival rate of dental implants ( Tsuno et al, 2014 ). In lyophilized form, it has been used to cover extensive intraoral excisions after resection of precancerous lesions, improving the re-epithelialization of lesions and reducing pain in patients ( Hazarika et al, 2022 ). The dry AM graft in post-tonsillectomy as a biological dressing reduced postoperative pain, facilitated rapid return to normal diet and promoted the wound healing process ( Faramarzi et al, 2021 ).…”