Single vs. Double Tenting Screws for Horizontal Ridge Augmentation.

Inclusion Criteria

• •Patients are systemically healthy based on questionnaire dental modification of Cornell index (Bolender, C. L. et al., 1969).
• •Gingival health according to the new classification system (Caton, J. G. et al., 2018).
• •The recipient site of the augmentation is free from any pathological conditions.
• •At least 1 tooth area with a ridge defect and planned to receive a dental implant. The site must be bordered by at least 1 tooth.
• •Class I ridge defect according to Seibert's classification.
• •Adequate interocclusal space to accommodate the available restorative components.