Inclusion Criteria:  Participants are free from any systemic diseases. Participant have missing one or two premolars or molars with sufficient alveolar ridge height and insufficient alveolar ridge buccolingual (BL) width that interfere with conventional straight forward implant placement. The minimum BL ridge width included in the study will be 3.5 mm to facilitate ridge splitting and expansion  Exclusion Criteria:  Patients with residual infections in the edentulous areas. Medically compromised groups. Smokers and patients with poor oral hygiene.