Two different drilling techniques in posterior maxilla immediate loading implant

One of the surgical techniques used to enhance the primary stability of implant in low density bone was the undersized drilling technique, which has been introduced to locally optimize poor density of bone by using a final drill diameter considerably smaller compared with the implant diameter.

On the other hand, a novel hollow drill with a single drilling systems was designed. Single drilling technique shortens surgical times, removes the smallest amount of bone during implant site preparation, reduces bone damage and micro fractures, and speeds up the healing process. Additionally, because of the hollow shape, bone core may be harvested and used as an autogenous bone grafting material.

Inclusion criteria:

1. Patients with missing single or multiple teeth in posterior maxilla.
2. Age more than 18 years.
3. 10 mm or more vertical bone height is present.
4. Good oral hygiene.
5. Patients willing to be present during the study follow up intervals.
6. Patients free from any systemic diseases.
7. 6 mm or more ridge width is present.
8. Crown height space of at least 8 mm.
9. Patients without any para-functional habits (bruxism and clenching).

Exclusion criteria:

1. Patients with any pathological lesion or root tips at the planned surgical site.
2. Patients with inadequate bone height and thickness.
3. Smoking more than 14 cigarettes per day.14
4. Alcohol or drug abuse.
5. Patients with systemic diseases that absolutely contraindicate implant placement.

Two groups one single drill and undersized groups with 12 months follow up

12 month

All