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Bone allograft block using demineralized freeze-dried bone ring technique in Indian patients


Pallavi D Yawale*,1, Kaustubh S Thakare1,Priti A Charde2, Ashok Kumar Bhati3, Aditi A Agrawal1 & Pooja M Khatri4



1Department of Periodontology, V.Y.W.S. Dental College and Hospital, Amravati, Maharashtra, India; 2Department of Periodontology, Sharad Pawar Dental College and Hospital, Sawangi (M), Wardha, Maharashtra, India; 3Department of Preventive Dental Sciences, College of Dentistry, Jazan University, Saudi Arabia; 4Department of Periodontology, Bhabha College of Dental Sciences, Bhopal, Madhya Pradesh, India; *Corresponding Author



Pallavi D Yawale -E-mail: pallavi33yawale@gmail.com

Kaustubh S Thakare - E-mail: kaustubhthakaremds@gmail.com

Priti A Charde -E-mail: preeti.perio@gmail.com

Ashok Kumar Bhati -E-mail: gums_ashh@yahoo.com

Aditi A Agrawal - E-mail: aditiagrawaldr@gmail.com
Pooja M Khatri - E-mail: mitesh.khatri@gmail.com


Article Type

Research Article



Received May 2, 2022; Revised June 30, 2022; Accepted June 30, 2022, Published June 30, 2022



Our study aimed to evaluate the effectiveness of the bone ring technique for ridge augmentation using Demineralized Freeze – Dried Bone Allograft block in Siebert’s class II/class III defects along with simultaneous implant placement. A total of 15 partially edentulous patients (16 surgical sites) with Siebert's class II and/or class III defects in the anterior region of both jaws requiring ridge augmentation along with implant placement were selected. Starting from the first stage, surgery (Ridge augmentation+ implant placement) was done in the first month. Then, with continuous follow-ups and radiographic assessment, after 6 months of 2nd stage surgery was done, the implant was loaded with the final restoration. Significant results were revealed with all the parameters other than keratinized gingival and peri-implant mucosa thickness. With the mean bone resorption of 1.22 mm and 1.17 mm at the mesial and distal site at a 6-month interval, the success rate of the bone ring technique was 93.75%. The allograft bone ring technique showed a favorable outcome for the reconstruction of large vertical defects.



bone ring technique, alveolar bone loss, DFDBA, bone regeneration



Dyawale et al. Bioinformation 18(6): 577-582 (2022)


Edited by

P Kangueane






Biomedical Informatics



This is an Open Access article which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. This is distributed under the terms of the Creative Commons Attribution License.