Six dental implant sites were prepared in three patients initially through ridge splitting technique associated with bone grafting followed by implants insertion after 4 months later.

Six dental implant sites were prepared in four patients through mucogingival and bony incision initially then after 3-4 weeks ridge splitting with bone grafting were done, followed by implants insertion after 4 months later.

Six dental implant sites were prepared in three patients initially through mucogingival, and bony incision followed by ridge splitting technique, bone grafting and implants insertion at the same time after 4 weeks from the bony incision.

Unlike the conventional ridge-splitting where bone grafting is done in the same visit after ridge splitting, modified ridge splitting involves splitting the ridge only at the first visit, then bone grafting is done either alone afterwards in the second visit (Modified 3-Staged Ridge-Splitting Group) and dental implants will be placed in the third visit, or, as in the Modified 2-Staged Ridge-Splitting Group, bone grafting and dental implants placement will be done in the second visit.

Radiographically via Cone-beam Computed Tomography (CBCT), the width of the alveolar bone was measured horizontally from the buccal to lingual cortex below the crest of the alveolar bone from 3 levels at 1 mm, 3 mm and 6 mm on three cross-sections by the CBCT software (OnDemand, Cybermed Inc, Korea).

Smartpeg was installed in the dental implant fixture. From both buccal and lingual directions, an analyzer probe was located closer to the Smartpeg, and the implant stability quotient (ISQ) values were obtained from the Osstell Monitor