Biomaterial Database

[Hemisection, tooth separation and root amputation]. 1976

P H Guldener

It is possible to utilize a segment of multirooted tooth as a healthy abutment even though retention of the entire tooth is impossible due to advanced periodontal disease, carious lesion or endocontic failure. The criteria for success of tooth hemisection, root separation or root amputation is dependent on the following factors: -proper case selection based upon adequate diagnostic tests -periodontal condition (amount of supporting bone) surrounding the remaining segment -condition of the remaining dentition -the ability to establish optimal occlusal relationship with minimal traumatic forces -the ability to perform satisfactory endodontic procedures, using an aseptic technique -stabilization by means of fixed prosthesis -the ability to establish an environment amenable to optimal oral hygiene.

UI	MeSH Term	Description	Entries
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
D009910	Oral Hygiene	The practice of personal hygiene of the mouth. It includes the maintenance of oral cleanliness, tissue tone, and general preservation of oral health.	Dental Hygiene,Hygiene, Dental,Hygiene, Oral
D010484	Periapical Granuloma	Chronic nonsuppurative inflammation of periapical tissue resulting from irritation following pulp disease or endodontic treatment.	Dental Granuloma,Granuloma, Periapical,Periapical Periodontitis, Chronic Nonsuppurative,Periodontitis, Apical, Chronic Nonsuppurative,Dental Granulomas,Granuloma, Dental,Granulomas, Dental,Granulomas, Periapical,Periapical Granulomas
D010510	Periodontal Diseases	Pathological processes involving the PERIODONTIUM including the gum (GINGIVA), the alveolar bone (ALVEOLAR PROCESS), the DENTAL CEMENTUM, and the PERIODONTAL LIGAMENT.	Parodontosis,Pyorrhea Alveolaris,Disease, Periodontal,Diseases, Periodontal,Parodontoses,Periodontal Disease
D003442	Crowns	A prosthetic restoration that reproduces the entire surface anatomy of the visible natural crown of a tooth. It may be partial (covering three or more surfaces of a tooth) or complete (covering all surfaces). It is made of gold or other metal, porcelain, or resin.	Dental Crowns,Crown, Dental,Crowns, Dental,Dental Crown,Crown
D005888	Gingival Pocket	An abnormal extension of a gingival sulcus not accompanied by the apical migration of the epithelial attachment.	Pocket, Gingival,Gingival Pockets,Pockets, Gingival
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000044	Dental Abutments	Natural teeth or teeth roots used as anchorage for a fixed or removable denture or other prosthesis (such as an implant) serving the same purpose.	Abutments, Dental,Abutment, Dental,Dental Abutment
D012389	Root Canal Obturation	Phase of endodontic treatment in which a root canal system that has been cleaned is filled through use of special materials and techniques in order to prevent reinfection.	Endodontic Obturation,Canal Obturation, Root,Canal Obturations, Root,Endodontic Obturations,Obturation, Endodontic,Obturation, Root Canal,Obturations, Endodontic,Obturations, Root Canal,Root Canal Obturations
D014092	Tooth Root	The part of a tooth from the neck to the apex, embedded in the alveolar process and covered with cementum. A root may be single or divided into several branches, usually identified by their relative position, e.g., lingual root or buccal root. Single-rooted teeth include mandibular first and second premolars and the maxillary second premolar teeth. The maxillary first premolar has two roots in most cases. Maxillary molars have three roots. (Jablonski, Dictionary of Dentistry, 1992, p690)	Root, Tooth,Roots, Tooth,Tooth Roots