scholarly journals A central tubercle on the lingual surface of the upper lateral incisor: Report of a case.

1997 ◽  
Vol 39 (2) ◽  
pp. 86-88 ◽  
Author(s):  
Yohko Fukuta ◽  
Morio Totsuka ◽  
Yasunori Takeda ◽  
Hirotsugu Yamamoto
Keyword(s):  
Lateral Incisor ◽  
Lingual Surface

scholarly journals Analysis of the Association of Foramen Cecum and Dens in Dente in Maxillary Lateral Incisor

2020 ◽  
Author(s):  
Luis Eduardo Genaro ◽  
Marcelo Brito Conte ◽  
Giovana Anovazzi ◽  
Andréa Gonçalves ◽  
Marcela de Almeida Gonçalves ◽  
...  
Keyword(s):  
Association Study ◽  
Statistical Tests ◽  
High Rate ◽  
Lateral Incisor ◽  
Type I ◽  
Chi Square ◽  
Lingual Surface ◽  
Maxillary Lateral Incisor ◽  
Dens In Dente

Abstract Objectives The aim of this study was to evaluate the frequency of foramen cecum and dens in dente, and to verify the association of these structures in the maxillary lateral incisor (MLI). Materials and Methods The presence of foramen cecum in the lingual surface of 110 MLI was verified, and the teeth were radiographed to observe the presence of dens in dente, being classified according to the literature. An association study between the presence of foramen cecum and dens in dente was performed using the Cramer’s V and chi-square statistical tests. Results The association was statistically significant between the foramen cecum and the dens in dente. Concomitant presence was observed in 17.27%, being a high rate when compared with the presence of foramen cecum alone (9.09%) or dens in dente alone (8.18%). In addition, type I (minimal invagination, confined to the crown of the tooth and not extending beyond the level of the cementum–enamel junction) was the most frequent (82.14%). Conclusions We emphasize the importance of alerting the dentist to the presence of a foramen cecum on the lingual surface of the MLI, as it is likely that dens in dente is usually of type I. Thus, the foramen cecum is a sign that can assist the dental surgeon in the discovery of dens in dente and clinical conduct to be taken.

Impact of oral-health-related quality of life and self-esteem on patients with missing maxillary lateral incisor after orthodontic space closure: a single-blinded, randomized, controlled trial

2020 ◽  
Author(s):  
Matheus Melo Pithon ◽  
Eduardo Otero Amaral Vargas ◽  
Raildo da Silva Coqueiro ◽  
Rogério Lacerda-Santos ◽  
Orlando Motohiro Tanaka ◽  
...  
Keyword(s):  
Oral Health ◽  
Controlled Trial ◽  
Phase 1 ◽  
Self Esteem ◽  
Lateral Incisor ◽  
Phase 2 ◽  
Space Closure ◽  
Related Quality ◽  
Health Related ◽  
Maxillary Lateral Incisor

Summary Background The maxillary lateral incisor is one of the teeth most likely to suffer agenesis, resulting in spacing between the central incisor and the canine. Objective To compare maxillary lateral incisor agenesis with space closure treatment versus non-treatment based on measurements of the self-perceived oral-health-related quality of life (OHRQoL) and self-esteem of the participants. Subjects and methods A total of 44 people, aged 17–49 years, with missing lateral incisors were randomly assigned to two groups (n = 22 in each)—a treated group in which the space was orthodontically closed (TG) and a control group that remained untreated (CG). Randomization was performed by a researcher who was not involved in the clinical part of the study. The outcomes were assessed using the Oral Health Impact Profile and Rosenberg’s Self-Esteem Scale, which were applied before (phase 1) and after (phase 2) the orthodontic treatment in the TG, and at baseline (phase 1) and 12 months after (phase 2) in the CG. All the data were blindly evaluated, supporting the single-blinded design of the study. Results All participants finished the randomized controlled trial, and the demographic characteristics were similar between the groups. In phase 1, the levels of self-esteem and OHRQoL at baseline were similar (P = 0.079, P = 0.693, respectively). In phase 2, the self-esteem scores of the CG decreased and the OHRQoL increased (P = 0.005, P < 0.001, respectively), while self-esteem increased in the TG and the OHRQoL decreased (P < 0.001). The CG had lower scores than the TG for self-esteem, but the opposite was observed for OHRQoL (P < 0.001). Limitations Information bias may have occurred. Since the questionnaires could not have been applied at the same time in both groups, the time difference between the two assessments may have led to random and systematic error. Conclusions The spacing resulting from missing maxillary lateral incisors had a negative impact on the OHRQoL and self-esteem of the participants, while orthodontically closing those spaces had a positive impact on those aspects. Clinical trial registration This study was not registered. Protocol The protocol was not published before trial commencement.

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.

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