coronectomy is a dental surgical procedure where the crown of a tooth is removed while the roots are intentionally left in place. It is most commonly discussed for lower wisdom teeth (mandibular third molars) that sit close to the inferior alveolar nerve. The goal is to reduce the chance of nerve injury compared with removing the entire tooth. Follow-up is usually part of care because the retained roots can change position over time.
horizontal impaction is a type of tooth impaction where a tooth lies sideways and does not erupt into its normal position. It most commonly describes impacted mandibular third molars (lower wisdom teeth) seen on dental X-rays. The term helps clinicians describe the tooth’s angle and likely interactions with nearby teeth, bone, and nerves. Patients may encounter it in radiology reports, referral notes, or surgical consult summaries.
vertical impaction is a technique for placing dental restorative material by pressing it downward into a prepared tooth area. It is most often discussed in the context of resin composite (tooth-colored filling) placement and contouring. The plain goal is to help the material adapt closely to cavity walls and internal angles. It may be used in routine restorative dentistry, especially for small-to-moderate direct fillings.
distoangular impaction describes a tooth that is “stuck” and tilted toward the back of the mouth. It most often refers to a lower third molar (wisdom tooth) that cannot erupt normally. The term is used in dental charts, radiology reports, and surgical planning. It helps clinicians communicate tooth position and expected treatment complexity.
mesioangular impaction describes a tooth that is stuck and tilted forward toward the front of the mouth. It most commonly refers to a mandibular (lower) third molar, also called a wisdom tooth. The term is used in dental exams and radiology reports to describe tooth position and plan care. It helps clinicians communicate how the impacted tooth relates to nearby teeth and bone.
soft tissue impaction is a type of tooth impaction where a tooth is blocked mainly by gum tissue rather than bone. It most often describes a tooth that has partially erupted but remains covered by a flap of gingiva (an “operculum”). It is commonly discussed with wisdom teeth, but similar soft-tissue coverage patterns can occur with other teeth. Clinicians use the term to describe what is preventing eruption and to help plan management.
A complete bony impaction is a tooth that is fully trapped within the jawbone and does not erupt into the mouth. It most commonly involves third molars (wisdom teeth), but it can occur with other teeth. The term is used in dental exams, X-rays, and surgical planning to describe tooth position and difficulty level. It helps clinicians communicate anatomy, risk factors, and treatment options in a standardized way.
partial bony impaction describes a tooth that is only partly covered by jawbone and has not fully erupted into the mouth. It is most commonly used to classify impacted third molars (wisdom teeth), but it can apply to other teeth. Clinicians use the term to communicate how much bone overlies the tooth and how that may affect symptoms and treatment planning. It is typically identified through a clinical exam and dental imaging.
An impacted third molar is a wisdom tooth that does not fully erupt into the mouth. It is usually blocked by gum tissue, bone, or neighboring teeth. It is commonly identified on dental exams and dental X‑rays. It is frequently discussed in general dentistry and oral surgery planning.
wisdom tooth extraction is a dental procedure to remove one or more third molars (wisdom teeth). It is commonly performed in general dental practices and oral surgery settings. It may be done for teeth that are erupted (fully visible) or impacted (partly or fully trapped in bone or gum). The goal is to address current problems or reduce the likelihood of future disease around the wisdom tooth area.