DELIVER OVERDENTURE TYPE "A"

Locator® abutments
Inventory all parts received from the laboratory immediately after
arrival of the case in the office. If the original impression for the
working model was over already installed attachment abutments (Locator, ball
type a.o.) proceed to deliver the denture in the usual fashion. If the
original impression was a fixture level impression (direct or
indirect) and
the laboratory choose the abutment attachments (Locator®
tutorial, ball type a.o.) the
abutments need to be transferred from the model to the exact corresponding implant
in the patients mouth. Because the attachment abutments are offered machined
in different collar heights it is important to transfer the abutments on to
the same correlating implant position in the patients mouth as they were
positioned on the working model during processing.
In most instances it is not necessary to anesthetize the patient for the
delivery of the restoration unless tissue recontouring around the implants
is planned. Remove any temporary restorations, temporary abutments or
trans mucosal healing abutments. Irrigate the inside of the implant with
chlorhexidine and flush out any debris.

Locator® driver
The attachment abutments are either hand tightened or torqued to manufacturers
recommendation. Have torque wrench or hand driver with appropriate driver
tip on hand. Laboratories often offer torque wrenches and hand drivers for
a nominal rental fee or contact your local implant manufacturers account
representative. Familiarize yourself with the torque wrench, torque settings
and how it works.

Final torque
Transfer the attachment abutments from the model to the patient and hand tighten the attachment abutments. Take a panograph to
ensure all components are seated and as a bone level baseline record.
Using pressure indicator paste (udent®), indentify and relieve any pressure
areas like a regular full denture. Adjust occlusion and equalize lateral contacts.
Torque all attachment abutments with the torque wrench or hand driver to
implant manufacturers specification (Torque
chart). Wait a few minutes and torque the
abutments again to specification.