scholarly journals Is missing maxillary lateral incisor in complete cleft lip and palate a product of genetics or local environment?

2012 ◽  
Vol 82 (6) ◽  
pp. 959-963 ◽  
Author(s):  
Kelley M. Dentino ◽  
Sheldon Peck ◽  
Daniela G. Garib
Keyword(s):  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Local Environment ◽  
Lateral Incisor ◽  
Maxillary Lateral Incisor

scholarly journals Dual embryonic origin of maxillary lateral incisors: clinical implications in patients with cleft lip and palate

2015 ◽  
Vol 20 (5) ◽  
pp. 118-125 ◽  
Author(s):  
Daniela Gamba Garib ◽  
Julia Petruccelli Rosar ◽  
Renata Sathler ◽  
Terumi Okada Ozawa
Keyword(s):  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Lateral Incisor ◽  
Craniofacial Anomalies ◽  
Nasal Process ◽  
Embryonic Origin ◽  
Maxillary Lateral Incisor ◽  
To Come ◽  
Dual Origin ◽  
Research Analysis

Introduction:Cleft lip and palate are craniofacial anomalies highly prevalent in the overall population. In oral clefts involving the alveolar ridge, variations of number, shape, size and position are observed in maxillary lateral incisors. The objective of this manuscript is to elucidate the embryonic origin of maxillary lateral incisors in order to understand the etiology of these variations.Contextualization: The hypothesis that orofacial clefts would split maxillary lateral incisor buds has been previously reported. However, recent studies showed that maxillary lateral incisors have dual embryonic origin, being partially formed by both the medial nasal process and the maxillary process. In other words, the mesial half of the lateral incisor seems to come from the medial nasal process while the distal half of the lateral incisor originates from the maxillary process. In cleft patients, these processes do not fuse, which results in different numerical and positional patterns for lateral incisors relating to the alveolar cleft. In addition to these considerations, this study proposes a nomenclature for maxillary lateral incisors in patients with cleft lip and palate, based on embryology and lateral incisors position in relation to the alveolar cleft.Conclusion:Embryological knowledge on the dual origin of maxillary lateral incisors and the use of a proper nomenclature for their numerical and positional variations renders appropriate communication among professionals and treatment planning easier, in addition to standardizing research analysis.

Chronology and Sequence of Eruption of the Permanent Teeth in Patients with Complete Unilateral Cleft Lip and Palate

2004 ◽  
Vol 41 (6) ◽  
pp. 642-645 ◽  
Author(s):  
Cleide Felíciode Carvalho Carrara ◽  
JoséEduardode Oliveira Lima ◽  
Carlos Eduardo Carrara ◽  
Bernardo Gonzalez Vono
Keyword(s):  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Sao Paulo ◽  
Lateral Incisor ◽  
Permanent Teeth ◽  
São Paulo ◽  
Craniofacial Anomalies ◽  
Cross Sectional ◽  
Maxillary Lateral Incisor ◽  
Mandibular Teeth

Objective To establish the chronology and sequence of eruption of the permanent teeth in subjects with complete unilateral cleft lip and palate. Design Cross-sectional. Data on children presenting complete cleft lip and palate were evaluated. Setting The study was carried out at the Hospital for Rehabilitation of Craniofacial Anomalies, Bauru, Sao Paulo, Brazil. Sample The sample comprised 477 patients with complete unilateral cleft lip and palate, aged 5 to 14 years. Of these patients, 166 were girls and 311 were boys. Results The girls presented, for all maxillary and mandibular teeth, a smaller mean age of eruption than the boys. The maxillary lateral incisor and cuspid adjacent to the cleft presented significantly higher mean ages of eruption than their homologous teeth on the noncleft side.

scholarly journals The maxillary lateral incisor in the rehabilitation of cleft lip and palate

2018 ◽  
Vol 26 (0) ◽  
Author(s):  
Guida Paola Genovez Tereza ◽  
Marcos Antônio Corrêa dos Santos ◽  
Vivian Patricia Saldias Vargas Winckler ◽  
Ana Lúcia Pompeia Fraga de Almeida ◽  
Gisele da Silva Dalben
Keyword(s):  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Lateral Incisor ◽  
Maxillary Lateral Incisor

Chronology of Deciduous Teeth Eruption in Children with Cleft Lip and Palate

2004 ◽  
Vol 41 (3) ◽  
pp. 285-289 ◽  
Author(s):  
Cristiane Duque ◽  
Gisele da Silva Dalben ◽  
Andreza Maria Fábio Aranha ◽  
Cleide Felício de Carvalho Carrara ◽  
Marcia Ribeiro Gomide ◽  
...  
Keyword(s):  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Cross Sectional Study ◽  
Sao Paulo ◽  
Lateral Incisor ◽  
Deciduous Teeth ◽  
São Paulo ◽  
Cross Sectional ◽  
Second Molar ◽  
Maxillary Lateral Incisor

Objective To determine the chronology and sequence of eruption of the deciduous teeth in children with complete unilateral cleft lip and palate. Design Cross-sectional study. Setting Hospital for Rehabilitation of Craniofacial Anomalies, University of Sao Paulo, Bauru, Sao Paulo, Brazil. Sample A total of 435 children aged 0 to 48 months who presented with complete unilateral cleft lip and palate. Results All teeth on the cleft side in both jaws for both sexes presented a higher mean age of eruption than their homologues at the noncleft side. This difference was statistically significant for the maxillary lateral incisor, maxillary cuspid, and mandibular lateral incisor. There was a statistically significant sex difference regarding the mean age of eruption only for the maxillary second molar for the girls and mandibular cuspid for the boys. The maxillary lateral incisor on the cleft side was the last tooth to erupt, thus modifying the sequence of eruption of the deciduous teeth. Conclusions The results suggest the interference of the cleft on the chronology of eruption of the deciduous teeth that are directly related to it.

Distribution Patterns of Primary and Permanent Dentition in Children with Unilateral Complete Cleft Lip and Palate

1998 ◽  
Vol 35 (2) ◽  
pp. 154-160 ◽  
Author(s):  
Tzong-Ping Tsai ◽  
Chiung-Shing Huang ◽  
Chuan-Chuan Huang ◽  
Lai-Chu See
Keyword(s):  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Distribution Patterns ◽  
Permanent Dentition ◽  
Primary Dentition ◽  
Lateral Incisor ◽  
Permanent Teeth ◽  
Alveolar Cleft ◽  
Maxillary Lateral Incisor ◽  
Numerical Variation

Objective To investigate the distribution patterns of primary and permanent teeth in the cleft area and the numerical variation in teeth in unilateral complete cleft lip and palate (UCLP) patients. Design A survey of the dentition in UCLP patients. Setting Craniofacial Center, Chang Gung Memorial Hospital, Taipei, Taiwan. Patients 137 UCLP patients who met the following criteria: (1) have had at least one panoramic film taken, (2) the first panoramic film illustrates either primary or early mixed dentition. Evaluation of both permanent and primary dentition was available in 91 cases. Main Outcome Measures Two evaluators performed independent evaluations of number and distribution of teeth in UCLP patients. The hypothesis that there are two odontogenic origins for maxillary lateral incisors was proposed to explain the occurrence of distribution patterns of dentition in the cleft area and to explain differences between primary and permanent dentition in UCLP patients. Results Four distribution patterns in the cleft area were identified in both the primary and the permanent dentition. In the primary dentition, placement of the lateral incisor distal to the alveolar cleft was the predominant pattern (pattern y, 82.4%), followed by absence of the cleft side maxillary lateral incisor (pattern ab, 9.9%), presence of one tooth on each side of the alveolar cleft (pattern xy, 5.5%), and placement of the lateral incisor mesial to the alveolar cleft (pattern x, 2.2%). In the permanent dentition, the most common pattern was the absence of the maxillary lateral incisor on the cleft side (pattern AB, 51.8%), followed by lateral incisor placement distal to the alveolar cleft (pattern Y, 46%), lateral incisor placement mesial to the alveolar cleft (pattern X, 1.5%) and the presence of one tooth on each side of the alveolar cleft (pattern XY, 0.7%). The discrepancy between the distribution patterns of primary dentition and permanent dentition successors is 57.1%. Variations in tooth number in both primary and permanent dentition of UCLP patients occurred most often in the cleft area. Abnormalities in the number of teeth (hypodontia or hyper-dontia) outside the cleft area were more common in the permanent dentition than in the primary dentition (24.1% versus 4.4%). Conclusions Four distribution patterns in the cleft area were identified in both sets of dentition. Our findings of distribution patterns in UCLP patients support the hypothesis that there may be two odontogenic origins for maxillary lateral incisors. Clinicians involved in managing the dentition of UCLP patients should consider the high frequency of numerical variation both in and outside the cleft area before starting dental treatment.

Maxillary Lateral Incisor of Subjects with Cleft Lip and/or Palate: Part 1

1992 ◽  
Vol 29 (4) ◽  
pp. 376-379 ◽  
Author(s):  
Akira Suzuki ◽  
Yasuhide Takahama
Keyword(s):  
Cross Sections ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Primary Dentition ◽  
Lateral Incisor ◽  
Canine Tooth ◽  
Anterior Teeth ◽  
Dental Hospital ◽  
Maxillary Lateral Incisor ◽  
Dental Casts

As a pilot study, dental casts of 30 patients with unilateral cleft lip and palate were selected and examined from the longitudinal data in the Department of Orthodontics, Kyushu University Dental Hospital. Dental casts of the anterior teeth were sectioned at right angles to the long axis of the tooth 2 to 3 mm below the incisai edge. The teeth were differentiated according to their cross sections. They were classed as lateral incisors or other types by the ratio of labiolingual diameter to mesiodistal diameter and the flatness labiolingually. Dental casts of 309 additional patients with cleft alveolus were examined subjectively based on above findings. In primary dentition, 183 of 184 teeth on the cleft side were incisai type. One tooth was canine type. In permanent dentition, 42 of 78 teeth on the cleft side were conical type, 20 teeth were intermediate type, and 16 teeth were incisai type. As a conclusion, the tooth on the cleft side is almost certain to be a lateral incisor, not a supernumerary canine tooth. As well, their form was normal in the majority of the primary dentition, but malformed in the permanent one.

Sella Turcica Bridging and Tooth Agenesis in Children With Unilateral Cleft Lip and Palate

2020 ◽  
pp. 105566562098464
Author(s):  
Gregory S. Antonarakis ◽  
Luis Huanca Ghislanzoni ◽  
David M. Fisher
Keyword(s):  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Alveolar Bone ◽  
Multinomial Logistic Regression ◽  
Sella Turcica ◽  
Lateral Incisor ◽  
Maximum Height ◽  
Dental Anomalies ◽  
Alveolar Bone Grafting ◽  
Lateral Cephalograms

Aim: To investigate differences in sella turcica size and bridging in children with unilateral cleft lip and palate (UCLP) with or without concomitant dental anomalies. Patients and Methods: A cross-sectional study was carried out looking at 56 children with nonsyndromic UCLP. Lateral cephalograms, taken before alveolar bone grafting, were used to assess sella turcica height, width, area, and bridging. Panoramic radiographs were used to evaluate the presence of dental anomalies in the cleft area including agenesis, supernumerary, and peg-shaped lateral incisors. Differences between sella turcica measurements in the presence or absence of dental anomalies were assessed using t tests. Differences between the prevalence of dental anomalies and sella turcica bridging were assessed using χ2 and Fisher exact tests. Multinomial logistic regression was used to investigate potential associations between sella measurements and dental anomalies. Results: Twenty-six of the 56 children presented with agenesis of the cleft-side lateral incisor, while 7 had a supernumerary, and 19 had a peg-shaped lateral incisor. With regard to sella turcica bridging, 27 children had no calcification, 25 partial and 4 complete calcification. Children with agenesis of the cleft-side lateral incisor showed a shorter sella maximum height ( P = .010) and a smaller area ( P = .019). When looking at sella turcica bridging, 100% of children with complete calcification showed agenesis of the cleft-side lateral incisor, compared with 52% and 33% of children with partial calcification and no calcification, respectively ( P = .034). Conclusions: Children with UCLP and sella turcica bridging are more likely to present with agenesis of the cleft-side maxillary lateral incisor.

Abnormalities of Maxillary Anterior Teeth in Chinese Children with Cleft Lip and Palate

2009 ◽  
Vol 46 (1) ◽  
pp. 58-64 ◽  
Author(s):  
Moon Cheung Lai ◽  
Nigel M. King ◽  
Hai Ming Wong
Keyword(s):  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Chinese Children ◽  
Lateral Incisor ◽  
Permanent Teeth ◽  
Dental Development ◽  
Anterior Maxilla ◽  
Anterior Teeth ◽  
Southern Chinese ◽  
Dental Records

Objective: To retrospectively study the anterior maxilla of southern Chinese children with complete cleft lip and palate (CLP) for the prevalence of different kinds of dental anomalies, position and rotation of the teeth, and the asymmetry of dental development. Patients: 195 southern Chinese children with CLP aged between 3 and 17 years. Methods and Materials: Dental records and study casts were studied as were the radiographs from which the dental development was determined. Results: The tooth prevalence of cleft side permanent lateral incisor was 19.2% in unilateral CLP (UCLP) children and 20.5% in bilateral CLP (BCLP) children. The cleft side central incisors were rotated in 78.1% and 95.9% of the teeth in UCLP and BCLP children, respectively. Of the permanent canines, 43.4% were positioned mesially on the cleft side in UCLP children, while for BCLP children 69.7% of the teeth were in a normal position. In addition, the mesially positioned canines were often associated with an absence of the permanent lateral incisor while the distally positioned canines were always associated with the presence of supernumeraries in the cleft region. The permanent teeth on the cleft side showed significantly delayed development compared with their antimeres on the noncleft side; however, the delayed permanent lateral incisors did complete their formation normally. Conclusion: This group of Chinese children with CLP demonstrated statistically significant higher prevalences of hypodontia, microdontia, and delayed dental development on the cleft side than the noncleft side.

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