Impaction
Partial or completely unexposed tooth that is wedged against another tooth, bone, or soft tissue, precluding the eruption process.

Implant
Artificial device replacing tooth root; may anchor an artificial tooth, bridge,
or denture.

Impression
Mold made of the teeth and soft tissues.

Incision and Drainage
Surgical incision of an abscess to drain suppuration (pus).

Incisors
Four upper and four lower front teeth, excluding the cuspids (canine teeth).

Infiltration
Local anesthetic procedure effective for upper teeth and soft tissue; placement of anesthetic under the gum, allowing it to seep into bone.

Inlay
Indirect - filling made by a dental laboratory that is cemented or bonded into place.
Direct - placement of dental composite resin restoration at chairside.

Interproximal
Surfaces of adjoining teeth.

Interocclusal
Space between upper and lower teeth.

Intraoral Camera
A small video camera used to view and magnify oral conditions; images may be printed.