Unilateral and bilateral dental transpositions in the maxilla: dental and skeletal findings in 63 individuals
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Unilateral and bilateral dental transpositions in the maxilla : dental and skeletal findings in 63 individuals. / Danielsen, Jakob Christian; Karimian, K; Ciarlantini, R; Melsen, B; Kjær, I.
I: European archives of paediatric dentistry : official journal of the European Academy of Paediatric Dentistry, Bind 16, Nr. 6, 12.2015, s. 467-76.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Unilateral and bilateral dental transpositions in the maxilla
T2 - dental and skeletal findings in 63 individuals
AU - Danielsen, Jakob Christian
AU - Karimian, K
AU - Ciarlantini, R
AU - Melsen, B
AU - Kjær, I
PY - 2015/12
Y1 - 2015/12
N2 - AIM: This was to elucidate dental and skeletal findings in individuals with unilateral and bilateral maxillary dental transpositions.MATERIAL AND METHODS: The sample comprised of radiographic materials from 63 individuals with maxillary dental transpositions from the Departments of Odontology at the Universities of Copenhagen and Aarhus and by the Danish municipal orthodontic service. The cases were divided into three groups: unilateral transposition of the canine and first premolar (Type 1U), bilateral transposition of canine and first premolar (Type 1B), and unilateral transposition of canine and lateral incisor (Type 2). The dentitions were analysed regarding agenesis and dental morphological anomalies on panoramic radiographs, and craniofacial aspects were cephalometrically analysed on profile images The results were statistically evaluated.RESULTS: All groups demonstrated increased occurrences of agenesis (Type 1U and Type 1B: 31 agenesis in 15 patients; and Type 2 three agenesis in three patients). Taurodontic root morphology was most dominant in Type 1U. Peg-shaped lateral incisors showed an increased occurrence, though not in Type 1U. Skeletally, Type 1B and Type 1U demonstrated maxillary retrognathia (more pronounced in Type 1B). Type 2 showed a significant posterior inclination of the maxilla.CONCLUSION: Transpositions of maxillary canines involve dental and skeletal deviations. Dental deviations were predominantly taurodontic root morphology and agenesis. Regarding skeletal deviations, bilateral transpositions of the canines and the first premolars are associated with skeletal changes. Unilateral transpositions are possibly a localised deviation with minor or no skeletal involvements. The results indicate a possible difference in the aetiologies of unilateral and bilateral transpositions.
AB - AIM: This was to elucidate dental and skeletal findings in individuals with unilateral and bilateral maxillary dental transpositions.MATERIAL AND METHODS: The sample comprised of radiographic materials from 63 individuals with maxillary dental transpositions from the Departments of Odontology at the Universities of Copenhagen and Aarhus and by the Danish municipal orthodontic service. The cases were divided into three groups: unilateral transposition of the canine and first premolar (Type 1U), bilateral transposition of canine and first premolar (Type 1B), and unilateral transposition of canine and lateral incisor (Type 2). The dentitions were analysed regarding agenesis and dental morphological anomalies on panoramic radiographs, and craniofacial aspects were cephalometrically analysed on profile images The results were statistically evaluated.RESULTS: All groups demonstrated increased occurrences of agenesis (Type 1U and Type 1B: 31 agenesis in 15 patients; and Type 2 three agenesis in three patients). Taurodontic root morphology was most dominant in Type 1U. Peg-shaped lateral incisors showed an increased occurrence, though not in Type 1U. Skeletally, Type 1B and Type 1U demonstrated maxillary retrognathia (more pronounced in Type 1B). Type 2 showed a significant posterior inclination of the maxilla.CONCLUSION: Transpositions of maxillary canines involve dental and skeletal deviations. Dental deviations were predominantly taurodontic root morphology and agenesis. Regarding skeletal deviations, bilateral transpositions of the canines and the first premolars are associated with skeletal changes. Unilateral transpositions are possibly a localised deviation with minor or no skeletal involvements. The results indicate a possible difference in the aetiologies of unilateral and bilateral transpositions.
KW - Adolescent
KW - Anodontia
KW - Bicuspid
KW - Cephalometry
KW - Child
KW - Cuspid
KW - Female
KW - Humans
KW - Incisor
KW - Male
KW - Malocclusion
KW - Radiography, Panoramic
KW - Retrognathia
KW - Sex Factors
KW - Tooth Abnormalities
KW - Tooth Eruption, Ectopic
KW - Tooth Root
U2 - 10.1007/s40368-015-0196-6
DO - 10.1007/s40368-015-0196-6
M3 - Journal article
C2 - 26351134
VL - 16
SP - 467
EP - 476
JO - European archives of paediatric dentistry
JF - European archives of paediatric dentistry
SN - 1818-6300
IS - 6
ER -
ID: 162371711