Items tagged “dental”
115 results found
Case
Ectopic eruption of a molar tooth
Published
19 Nov 2017
89% complete
CT
Article
Bifid premolar root
A bifid premolar root is a normal variant where there are two roots involving a premolar tooth. It is thought to present in approximately 2.5 % of population 1. They are mostly located in the buccal and lingual directions.
See also
teeth
Article
Inferior alveolar nerve injury
Inferior alveolar nerve injuries are most commonly iatrogenic, predominantly post third mandibular molar extraction, although they can occur post dental implant. Mandibular fractures are the most frequent non-iatrogenic etiology. This article is focussed on iatrogenic injuries.
Epidemiology
T...
Case
Microdontia
Published
22 Jan 2019
85% complete
X-ray
Article
Microdontia
Microdontia is where a tooth appears smaller than normal. It most commonly affects the maxillary lateral incisor and the third molars.
Article
Dental terminology
There are specific dental terminology to be aware of when describing teeth and dental disease on orthopantomogram or other imaging studies of the teeth or jaw 1.
apical: the direction towards the apex of the root of a tooth
mesial: the direction towards the anterior midline of the dental arch
...
Article
Fédération Dentaire Internationale (FDI) notation
The Fédération Dentaire Internationale or FDI World Dental Federation notation system is a commonly used system for the numbering and naming of teeth. The system uses a two number system for the location and naming of each tooth.
Permanent teeth
The jaw is divided into four quadrants between t...
Article
Odontogenic sinusitis
Odontogenic sinusitis describes inflammation of the maxillary sinus secondary to dental pathology or dental procedures.
Epidemiology
Odontogenic sinusitis accounts for 5-70% of cases of chronic maxillary sinusitis. It is the most common cause of unilateral maxillary sinusitis 6.
Clinical pres...
Article
American Dental Association Universal Numbering System
The American Dental Association Universal Numbering System is a tooth notation system primarily used in the United States.
Teeth are numbered from the viewpoint of the dental practitioner looking into the open mouth, clockwise starting from the distalmost right maxillary teeth.
Permanent teeth...
Article
Periapical radiolucency (teeth)
Periapical radiolucencies are commonly observed findings on OPG and other dental/head and neck imaging modalities.
Differential diagnosis
They can represent a number of pathologies:
periapical lucency related to apical periodontitis
periapical granuloma
periapical abscess
periapical cyst
...
Article
Pericoronitis
Pericoronitis is the inflammation of the tissues around the crown of a partially erupted tooth.
Pathology
Pericoronitis most commonly occurs around the third mandibular molars. It initially manifests as a localized gingivitis, can extend into the alveolar bone and may progress to a head/neck ...
Article
Dental trauma
Dental trauma is common, affecting up to one-third of the population. While often clinically apparent, they may be overlooked in the setting of severe trauma.
Pathology
The maxillary incisors are the most commonly injured tooth. Dental trauma is commonly classified as 1,2:
luxation
concuss...
Article
Dental fracture
Dental fractures are often clinically apparent but can be overlooked in cases with associated facial fractures, especially as root fractures may be clinically occult.
Terminology
When both a tooth and alveolar process are fractured, the term dentoalveolar fracture may be used 1.
Pathology
...
Article
Dental luxation
Dental luxation is a common manifestation of dental trauma and may be associated with socket fractures.
Pathology
Dental luxation is a general term encompassing 1:
concussion: tender tooth, no loosening/displacement
subluxation: tender tooth, loosening without displacement
extrusive luxat...
Article
Dental implant
Dental implants are a common procedure used to replace absent teeth. Radiology has a role in pre-implant planning as well as post-implant assessment including identification of complications.
Radiographic features
Dental cone beam computed tomography (CBCT) is the most common modality used in...
Article
Sinus lift procedure
The sinus lift procedure, also known as subantral augmentation, is performed in patients with insufficient bone stock to secure a dental implant in the maxilla.
Procedure
The aim of the sinus lift procedure is to increase the height and width of maxillary alveolar bone (to at least 5 mm in wi...
Article
Apical periodontitis
Apical periodontitis refers to a spectrum of diseases that occur around the tooth apex and these can include 1,4:
periodontitis
chronic periodontitis
aggressive periodontitis
necrotizing periodontitis
periapical granuloma
periapical abscess
periapical (radicular) cyst
Clinical presentati...
Case
Congenitally absent lateral incisors
Published
09 Jul 2020
79% complete
X-ray
Case
Hypercementosis - generalized
Published
05 Aug 2020
88% complete
X-ray
Article
Idiopathic osteosclerosis of the mandible
Idiopathic osteosclerosis of the mandible is a common incidental finding on dental imaging.
Terminology
Idiopathic Osteosclerosis is also known as dense bone islands, enostoses, bone scar, bone whorl or focal periapical osteopetrosis 1,2,3.
Idiopathic osteosclerosis is the preferred terminolo...
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