Digital workflow for alveolar ridge preservation with equine-derived bone graft and subsequent implant rehabilitation: a case report

Author(s):  
Danielle Ayumi Nishimura ◽  
Christyan Iida ◽  
Ana Luiza Esteves Carneiro ◽  
Emiko Saito Arita ◽  
Claudio Costa ◽  
...  

This case report describes a digital workflow used for three main purposes: to predict the volume of particulate grafting material required to perform alveolar ridge preservation; to conduct subsequent virtual implant planning; and to digitally design the respective implant-supported crown. The volume of equine-derived bone grafting material required for filling the alveolar socket is digitally estimated in cubic millimeters from cone beam computed tomographic (CBCT) data using a specific software tool for volume measurements. Digital crown design from an intraoral scan allows for milling the definitive implant-supported crown. For this purpose, a scan body can be used and even slightly trimmed externally to avoid excessive proximity with an adjacent rotated tooth.

2019 ◽  
Vol 30 (S19) ◽  
pp. 455-455
Author(s):  
Dimitra Vakou ◽  
Evangelia Zampa ◽  
Christina Tsirigoni ◽  
Natalia Christaki ◽  
Spiridon Silvestros

2021 ◽  
Vol 11 (14) ◽  
pp. 6591
Author(s):  
Sung-Wook Yoon ◽  
Young Woo Song ◽  
Ui-Won Jung ◽  
Jae-Kook Cha

After tooth extraction, notable ridge alterations occur due to resorption of bundle bones during the healing process. In areas with thin or damaged socket walls and multiple adjacent tooth extraction, dimensional changes are more prominent in the marginal proportion. In addition to the marginal changes, upper molar teeth are also vulnerable to pneumatization of the maxillary sinus. To reduce dimensional changes in extraction sockets, alveolar ridge preservation (ARP) is favored by many clinicians in areas where a large amount of dimensional change is expected. This case report presents two cases of ARP using collagenated demineralized bovine bone mineral and demineralized porcine bone mineral in the apically involved upper premolar and molar, respectively. Implants were placed one and two years, respectively, after the ARP. Radiographic analyses of residual bone height and volume were measured using cone-beam-computed tomography (CBCT) and histologic analysis of newly formed mineralized bone and residual graft material percentages were measured from the collected tissue samples using a trephine bur. Implants were placed using a simple technique, without any additional bone grafts at the marginal proportion. The ARP technique could maintain the alveolar bone height and volume, as well as minimize the invasiveness of surgical procedures during implant surgery.


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