Category: P
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Periapical radiograph
Radiograph taken intraorally showing the entire tooth from the occlusal plane to the apex. The radiograph should reach 3 mm beyond the structures of the tooth. An intraoral radiograph that depicts the tooth and surrounding tissues extending to the apical region.
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Periapical
Of or relating to tissues that surround the apex or root (root tip) of a tooth; may include the periodontal ligament or alveolar bone. Around the summit, as of a tooth or lung. To tissues around the apex of a tooth (e.g., periapical abscess, infection around the root of a tooth). Around an apex, particularly…
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Periabutment
Region surrounding an implant abutment. Usually refers to the soft or hard tissues surrounding the abutment.
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Perforation
Inadvertent tear or dehiscence within a flap created during surgery, either by overthinning the mucosa, improper blade direction while making periosteal releasing incisions, or excessive flap retraction. The act of boring or piercing through a part. A hole made through a part or substance. The act of piercing through. A hole through the whole thickness…
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Percutaneous implant
Implant placed and positioned through the skin, e.g., implants placed extraorally for reconstruction of facial structures or those used in the treatment of fractures in buccomaxillofacial and orthopedic areas.
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Percussion
To strike objects to produce a sound; in dentistry, tapping with fingers or with a medical device on oral structures can allow for diagnoses regarding the state of inflammation, disease onset, or progression or healing. Diagnostic technique in which various body surfaces are tapped; the resulting sounds indicate the size, position, and general condition of…
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Percentage bone–implant contact
Area of bone in direct contact with the implant surface; usually measured from histologic specimens.
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Perceived color
Description of color based on various attributes (e.g., names of colors) or based on the senses (e.g., smell, touch, sound).
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Peptostreptococcus spp
Anaerobic, grampositive cocci that infect the whole body including soft tissues. In dentistry, these organisms can invade the subgingival flora, leading to infection and slow recovery times.
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Peptococcus spp
Gram‐positive, nonmotile, anaerobic cocci occurring in irregular groups or clusters. Frequently found as a part of the subgingival plaque flora and occasionally implicated in oral infections and periodontal diseases.