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level: TOOTH FRACTURES

Questions and Answers List

level questions: TOOTH FRACTURES

Question	Answer
happens when the tissues, ligaments and sometimes bone that support your tooth become injured	TOOTH LUXATION
produced by injury which is not strong enough to cause serious, visible damage to the tooth and the periodontal structures.	CONCUSSION
CONCUSSION etiology	direct or indirect blow; trauma
Concussion radiographic features	normal
Concussion clinical features	normal
concussion treatment	soft diet
An injury to the tooth-supporting structures with abnormal loosening, but without clinically or radiographically demonstrable displacement of the tooth	LUXATION
LUXATION etiology for children	falls
LUXATION etiology for all ages	injuries, assaults and accidents
LUXATION(PATHOLOGY): evident by bleeding at the gingival marginal crevice.	Rupture of the periodontal tissue
LUXATION(RADIOGRAPHIC): FOLLOW UP SHOWS	pulp canal obliteration.
LUXATION(CLINICAL FEATURES): sound when tooth is tapped	ankylotic
LUXATION: TREATMENT	SOFT DIET
Partial displacement of the tooth out of its socket	EXTRUSIVE LUXATION
EXTRUSIVE LUXATION treatment	repositioning and splinting
Eccentric displacement of the tooth. This is accompanied by comminution or fracture of the alveolar socket.	LATERAL LUXATION
LATERAL LUXATION treatment	repositioning and splinting
Displacement of the tooth deeper into the alveolar bone. This injury is accompanied by comminution or fracture of the alveolar socket	INTRUSIVE LUXATION
INTRUSIVE LUXATION treatment	spontaneous eruption or orthodontic extrusion
The complete displacement of the tooth from the socket due to trauma.	AVULSION
AVULSION etiology	direct or indirect blow; trauma
AVULSION(radiographic features): socket	empty
AVULSION(radiographic features): lamina dura	visibility or obliteration
AVULSION:Clinical Features	Bleeding socket with missing tooth
Conditions required for reimplantation include	intact alveolar socket, elapsed extraalveolar period
classified as a traumatic injury of the teeth which is referred to as the pathologic wearing-away of tooth structure from some external force or an abnormal mechanical process which usually affects the cervical areas of the teeth.	ABRASION
TYPES OF ABRASION: faulty brushing techniques and the use of an abrasive dentifrice such as toothpastes with activated charcoal. Dentifrices can cause remarkable wear of the cementum and dentin if the toothbrush carrying the dentifrice is injudiciously used, particularly in a horizontal rather than vertical direction	Toothbrush Abrasion
TYPES OF ABRASION: Notching on the teeth may be noted in carpenters, shoemakers, or tailors who hold nails, tacks, or pins between their teeth.	Occupational Abrasion
TYPES OF ABRASION: habitual opening of bobby pins with the teeth may result in a notching of the incisal edge of maxillary central incisor. Also, habitual pipe smokers may develop notching of the teeth that conforms to the shape of the pipe stem.	Habitual Abrasion
TYPES OF ABRASION: This form of abrasion was noted in the earlier tribes in Africa, where they wanted to get their teeth chipped to achieve the appearance of abrasion	Ritual Abrasion
TYPES OF ABRASION: This form of abrasion is more commonly seen in removable partial dentures where the denture is composed of metal and acrylic. For instance, any clasps to hold RPD in place which exerts unwanted pressure on the cervical region of the tooth over a long period of time can possibly lead to abrasion	Prosthetic Abrasion
ABRASION(RADIOGRAPH):	semicircular or semilunar shape
ABRASION(TREATMENT): MILD	soft bristled toothbrushes
ABRASION(TREATMENT): MODERATE	desensitizing agents
ABRASION(TREATMENT): SEVERE	dental fillings
characterized by sharp pain on chewing without any obvious reason, which is actually caused by a “hidden” crack of the tooth.	CRACKED TOOTH SYNDROME
Classifications of Cracked Teeth by ADA:Micro - fractures of the enamel only.	Craze Line
Classifications of Cracked Teeth by ADA:Common around an old dental filling affecting teeth chewing surfaces	Fractured Cusp
Classifications of Cracked Teeth by ADA:Vertical cracks reach from the tooth surface to the gum line	Cracked Tooth
Classifications of Cracked Teeth by ADA:A crack or fracture that reaches the gum line.	Split Tooth
Classifications of Cracked Teeth by ADA:Begins below the gum line and extends to the tooth surface	Vertical Root Fracture
UNTREATED CTS can lead to	possible pulpal necrosis, and periapical abscess.
break in the continuity of the dental tissues. It is a common injury which may arise in a variety of situations, the most frequent of which is sudden severe trauma	TOOTH FRACTURE
tooth fracture is common in	maxillary teeth; anterior; boys
Ellis Classification of Tooth Fractures:Simple fracture of the crown, involving little or no dentin.	Class 1
Ellis Classification of Tooth Fractures:Non-tender ; May have rough edges	Class 1
Ellis Classification of Tooth Fractures:Extensive fracture of the crown, involving considerable dentin but not the dental pulp.	Class 2
Ellis Classification of Tooth Fractures:Tender to touch and air; Yellow dentin may be visible	Class 2
Ellis Classification of Tooth Fractures:Extensive fracture of the crown, involving considerable dentin and exposing the dental pulp.	Class 3
Ellis Classification of Tooth Fractures:Tender to touch and air; Pink/red or blood visible	Class 3
Ellis Classification of Tooth Fractures:The traumatized tooth becomes nonvital, with or without loss of crown structure	Class 4
Ellis Classification of Tooth Fractures:Teeth lost as a result of trauma; avulsion	Class 5
Ellis Classification of Tooth Fractures:Fracture of the root, with or without loss of crown structure.	Class 6
Ellis Classification of Tooth Fractures:Displacement of a tooth, without fracture of crown or root.	Class 7
Ellis Classification of Tooth Fractures:Fracture of the crown en masse (all together) and its replacement	Class 8
Ellis Classification of Tooth Fractures:Traumatic injuries to deciduous teeth.	Class 9
A fracture located in the enamel portion with loss of structure without involving the dentin and pulp	ENAMEL FRACTURE
A fracture of the enamel and dentin structures that does not involve the pulp	ENAMEL - DENTIN FRACTURE
A fracture of the enamel and dentin structures of the tooth which involves pulp exposure.	ENAMEL - DENTIN - PULP FRACTURE
A fracture involving the dentin, cementum, and pulp	ROOT FRACTURE