274 Theories and techniques of oral implantology

When either the anterior or posterior shoulder is higher than the other shoulder, tipping the abutment post forward or backward, as the case may be, the implant should be removed and the site under the higher shoulder deepened with a No. 700 tapering fissure bur until accurate seating is accomplished.

Whenever possible the neck of the blade should

be buried inside the fibromucosal tissues so that it does not extend into the oral cavity. Therefore, in cases where the tissue is extremely thin, such as in some mandibles, a blade with a shorter neck should be employed or the blade should be buried deeper. If the neck remains exposed, only an elastic impression of the post can be taken. A plaster index would lodge below the post and around the neck, possibly dislodging the implant when the impression is removed.

Often, the mucoperiosteal tissue in the maxillary

Fig. 7-41. The overlying tissues are too thick, burying the abutment posts of the blade.

Fig. 7-42. Thick tissue may be removed with a scalpel while the implant is in place.

Fig. 7-43. The thin tissues have approximated over the site. They will tighten when healed.

Fig. 7-44. To make a post parallel with other abutments, it must be bent at the neck buccolingually while holding the implant between two wide-nosed pliers.