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Volume 41 , Issue 3
May/June 2021
Pages 397–403

The Custom Alveolar Ridge-Splitting (CARS) Technique for Predictable Horizontal Ridge Augmentation in the Atrophic Anterior Maxilla: A Retrospective Case Series Study

Stuart J. Froum, DDS/Raed O. Kadi, BDS/Buddhapoom Wangsrimongkol, DDS/Parnward Hengjeerajaras, DDS/Natacha Reis, DDS/Paul Yung Cheng Yu, DDS/Sang-Choon Cho, DDS

PMID: 34076636
DOI: 10.11607/prd.5411

Implant-supported restorations have proven to be a predictable option for replacing missing teeth. In cases of inadequate bone quantity, the bone volume can be increased by bone augmentation procedures. Several factors can affect bone regeneration, including the morphology of the defect at the implant site. A defect surrounded by bony walls (an intraosseous defect) is known to yield a highly successful regeneration. The purpose of this retrospective case series study was to present a new step-by-step surgical procedure known as the Custom Alveolar Ridge-Splitting (CARS) technique for maxillary anterior ridge augmentation. This technique creates an intraosseous defect while splitting and augmenting an atrophic ridge. Sixteen consecutive cases were treated with the CARS procedure. All implants were restored and followed for 12 to 24 months after loading, and all cases were effectively treated with successful implant placement. According to this retrospective study, the CARS procedure is simple, successful, and predictable and may be used as a surgical option for horizontal alveolar ridge augmentation in the anterior maxilla.

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