Biomaterial Database

Case report: A cautionary tale of impacted palatal premolars and molar root resorption. 2009

Tracy Butler, and Mechelle Collard, and Lindsay Hunter

University Dental Hospital, Heath Park, Cardiff CF14 4XY, UK.

Impacted premolars are a common occurrence. This report describes how an impacted UR5, which was easily palpable and predicted to erupt spontaneously, caused extensive root resorption in the adjacent UR6. CONCLUSIONS This case highlights the importance of a thorough assessment of the position of all impacted premolars, irrespective of whether they can be palpated or not. This is especially important when planning orthodontic extractions, where the use of up-to-date appropriate radiographs is essential.

UI	MeSH Term	Description	Entries
D008437	Maxilla	One of a pair of irregularly shaped bones that form the upper jaw. A maxillary bone provides tooth sockets for the superior teeth, forms part of the ORBIT, and contains the MAXILLARY SINUS.	Maxillae,Maxillary Bone,Bone, Maxillary,Bones, Maxillary,Maxillary Bones,Maxillas
D008963	Molar	The most posterior teeth on either side of the jaw, totaling eight in the deciduous dentition (2 on each side, upper and lower), and usually 12 in the permanent dentition (three on each side, upper and lower). They are grinding teeth, having large crowns and broad chewing surfaces. (Jablonski, Dictionary of Dentistry, 1992, p821)	Molars
D005260	Female		Females
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000293	Adolescent	A person 13 to 18 years of age.	Adolescence,Youth,Adolescents,Adolescents, Female,Adolescents, Male,Teenagers,Teens,Adolescent, Female,Adolescent, Male,Female Adolescent,Female Adolescents,Male Adolescent,Male Adolescents,Teen,Teenager,Youths
D001641	Bicuspid	One of the eight permanent teeth, two on either side in each jaw, between the canines (CUSPID) and the molars (MOLAR), serving for grinding and crushing food. The upper have two cusps (bicuspid) but the lower have one to three. (Jablonski, Dictionary of Dentistry, 1992, p822)	Premolar,Bicuspids,Premolars
D012391	Root Resorption	Resorption in which cementum or dentin is lost from the root of a tooth owing to cementoclastic or osteoclastic activity in conditions such as trauma of occlusion or neoplasms. (Dorland, 27th ed)	Resorption, Root,Resorptions, Root,Root Resorptions
D014081	Tooth Extraction	The surgical removal of a tooth. (Dorland, 28th ed)	Extraction, Tooth,Extractions, Tooth,Tooth Extractions
D014095	Tooth, Impacted	A tooth that is prevented from erupting by a physical barrier, usually other teeth. Impaction may also result from orientation of the tooth in an other than vertical position in the periodontal structures.	Teeth, Impacted,Impacted Teeth,Impacted Tooth
D016301	Alveolar Bone Loss	Resorption or wasting of the tooth-supporting bone (ALVEOLAR PROCESS) in the MAXILLA or MANDIBLE.	Alveolar Resorption,Bone Loss, Alveolar,Bone Loss, Periodontal,Periodontal Bone Loss,Periodontal Resorption,Alveolar Bone Atrophy,Alveolar Process Atrophy,Alveolar Bone Atrophies,Alveolar Bone Losses,Alveolar Process Atrophies,Alveolar Resorptions,Bone Atrophies, Alveolar,Bone Atrophy, Alveolar,Bone Losses, Periodontal,Periodontal Bone Losses,Periodontal Resorptions,Resorption, Alveolar,Resorption, Periodontal,Resorptions, Alveolar