Root Morphology Of Mandibular Anterior Teeth In Mecca City Population

Introduction: The prevalence of Apical Root Resorption (ARR) after orthodontic treatment is high. It is associated with several factors, such as tooth group, type and duration of treatment, applied force and root morphology. Aim: To evaluate the apical root morphology of maxillary incisors in a Brazilian subpopulation using Cone Beam Computed Tomography (CBCT) images. Materials and Methods: In this retrospective and cross-sectional study, 400 maxillary incisors from 167 patients registered in the data base of Dental Radiology Clinics between January 2012 and April 2017 were analysed. The apical root configuration was verified by navigating 0.1 mm/0.1 mm, in the three planes, axial, coronal, and sagittal sections on CBCT images, from the root canal entrance to the apical foramen, as well as from the apical direction to the crown. The standard reference for apical root form corresponded to the long axis of the tooth. The root forms and their frequency were characterised according to the classification proposed by Levander and Malmgren (1988). The qualitative variables were analysed by the Chi-square test. The level of significance was p-value <0.05. Results: A total of 400 maxillary anterior teeth (central and lateral incisors; n=200 each) from 167 patients (101 women; mean age was 41.8±16.20 years) were analysed. The most common apical root form presented in the central incisors was the blunt root {99 (49.5%)}, followed by pipette-shaped root {69 (34.5%)}. The less frequent was the short root {13 (6.5%)} (p-value <0.001). In the lateral incisors, the highest frequency presented was lacerated root {111 (55.5%)}, followed by blunt root {47 (23.5%)}, and pipette- shaped root {37 (18.5%)} (p-value <0.001). Conclusion: Maxillary central incisors had a higher frequency of rhomboid (blunt) root morphology, while lateral incisors had a higher frequency of curved (lacerated) root form.

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Association between agenesis and root morphology of anterior teeth

Revista de Odontologia da UNESP ◽

10.1590/1807-2577.09119 ◽

2019 ◽

Vol 48 ◽

Author(s):

Rodrigo BORALI ◽

Carolina Carmo de MENEZES ◽

Giovana Cherubini VENEZIAN ◽

Silvia Amélia Scudeler VEDOVELLO ◽

Viviane Veroni DEGAN

Keyword(s):

Root Morphology ◽

Third Molar ◽

Tooth Agenesis ◽

Chi Square ◽

Significance Level ◽

Exact Test ◽

Anterior Teeth ◽

Significant Difference ◽

Group 3 ◽

Group 2

Abstract Introduction Tooth agenesis is likely to affect the root teeth and should be considerated in orthodontic tratament. Objective The aim of this study was to assess the association between agenesis and root morphology of anterior teeth. Material and method The anterior teeth of 51 individuals were evaluated on 102 periapical radiographs and then divided into three groups: Group 1 (n=16) – no tooth agenesis; Group 2 (n=17) – only third molar agenesis; and Group 3 (n=18) – tooth agenesis of premolars or lateral incisors. Root morphology of anterior teeth was evaluated and the roots were classified as short, blunt, apically bent, and pipette-shaped. Fisher’s exact test was used to compare root shapes, the chi-square test was used to obtain the distribution of sexes between the groups, and ANOVA was performed to compare the ages between the groups. The significance level was set at 5% for all analyses. Result There was significant difference in root shapes (P<0.05) between the groups. Blunt roots were the most prevalent in all groups, but their rate was higher in Group 3 (83%). Conclusion There was association between agenesis and root morphology of anterior teeth.

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Children's dentistry in general practice. 8. Injuries to anterior teeth of children

BDJ ◽

10.1038/sj.bdj.4802585 ◽

1970 ◽

Vol 129 (8) ◽

pp. 382-384

Author(s):

S F Parkin ◽

J A Hargreaves ◽

J Weyman

Keyword(s):

General Practice ◽

Anterior Teeth

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Efficiency of 3% Non-epinephrine Mepivacaine Application During Intraligamentary Anesthesia With Positive and Negative Aspiration in Pain Sensitivity to Electric Current of Young Subject`s Upper Anterior Teeth Pulp:

Journal of Oral & Dental Health ◽

10.33140/jodh/01/01/00006 ◽

2017 ◽

Vol 1 (1) ◽

Keyword(s):

Pain Sensitivity ◽

Pain Threshold ◽

Young Subject ◽

Reference Level ◽

Maximum Effect ◽

Anterior Teeth ◽

Randomized Controlled Studies ◽

Group Methods ◽

Peak Increase ◽

Infiltration Anesthesia

Background: Separation methods of local anesthesia to diffuse and vascular must significantly affect the clinical effect of adrenaline containing local anesthetic (mepivacaine). The aim of this prospective, randomized, controlled studies µAde was to compare the degree of anesthesia of intact upper lateral incisor the cartridge ¼ 3% mepivacain without epinephrine in the group after the infiltration and after intraligamentary anesthesia (ILA) in the experimental group. Methods: Anesthesia performed computer syringe Sleeper One 86 subjects aged 20-23 years. In all cases, aspiration was performed. With pulp tester IVN-01 measured the pain threshold incisors and canines in microamperes during the anesthetic effect. Results: Reference level of all researched teeth (86 subjects) was ranged from 1 to 10 µA. Uniform pain threshold increase to 95 (±20) µA by 5 min. watched during infiltration anesthesia then this value gradually descended to reference level (by 20 min.). Peak single increase of pain threshold to 55 (±8,9) µA occurred immediately after 1st minute of ILA, then this value subsequently drops to reference level (10 µA) by 20 minutes. Difference between groups of infiltration and intraligamentary anesthesia (ILA+ red) and (ILA – green) presented on Chart 6. Conclusions: Infiltration anesthesia with mepivacaine without epinephrine smoothly diffusely increased the pain threshold of the front teeth, reaching a significant, maximum effect by 5 minutes. Intraligamentary injection immediately after administration created a peak increase in pain sensitivity at a lower level, almost without the participation of the diffuse component.

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Comparision of two fluoride varnishes for controlling white spot lesions. Randomized clinical trial

REVISTA ODONTOLOGÍA PEDIÁTRICA ◽

10.33738/spo.v16i1.13 ◽

2017 ◽

Vol 16 (1) ◽

Author(s):

Jesús Alberto Luengo - Fereira

Keyword(s):

Clinical Trial ◽

Randomized Clinical Trial ◽

White Spot ◽

Controlled Clinical Trial ◽

White Spot Lesions ◽

Randomized Controlled Clinical Trial ◽

Chi Square ◽

Randomized Controlled ◽

Anterior Teeth ◽

The Mean

Objective: To compare two fluorinated varnishes for the control of white spot lesions.Material and Methods: A randomized controlled clinical trial was conducted. A total of 103 active whitespot lesions on permanent upper anterior teeth from 24 patients, aged 7 to 9 years were randomly assigned totwo groups, G1: Duraphat® (n=52) and G2: DuraShield® (n=51). Weekly applications were perform for fourconsecutive weeks. Fifth week the dimension, regression and activity of the lesions were evaluated. Student’sT test, Wilcoxon Ranks and Chi square were used at 5% significance. Results: At the end of the study, the lesion reduction was observed in 69.7%, finding significant differences(p<0.05) in the mean of the initial and final dimensions in general (2.74 mm to 1.91 mm) and in each group, G1(2.84 mm to 2.03 mm), G2 (2.64 mm to 1.78 mm). In the activity of the lesions, it was found in the G1, 12 active and6 inactive lesions; while in G2, there were 14 active and 29 inactive; these differences were significant (p<0.05). Conclusions: The two evaluated products showed similar clinical efficacy in the remineralization of activewhite spot lesions after 4 weeks of therapy.

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THE IMPACT OF ANTERIOR TEETH ALIGNMENT ON THE COLLECTIVITY PUPILS PERCEPTION

10.15303/rjeap.2017.si1.a27 ◽

2017 ◽

Author(s):

Cristina Nicolae ◽

Gheorghe Raftu

Keyword(s):

Anterior Teeth ◽

The Impact

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Cirurgia de aumento de coroa clínica e confecção de facetas diretas em resina composta orientadas por mock-up.

Full Dentistry in Science ◽

10.24077/2020;1245-cit2433 ◽

2020 ◽

Vol 12 (45) ◽

pp. 24-33

Author(s):

Fábio Shiniti Mizutani ◽

Atila de Freitas ◽

Adriano Sapata ◽

Claudio Sato

Keyword(s):

Case Report ◽

Composite Resin ◽

Treatment Plan ◽

Diagnostic Information ◽

Good Treatment ◽

Restorative Dentistry ◽

Laboratory Technician ◽

Crown Length ◽

Anterior Teeth ◽

Anterior Posterior

Keeping in mind the final result is the basis of any type of treatment, especially those in which the morphology, size and proportion of the anterior teeth will be changed. This is where a good treatment plan based on a diagnostic wax-up tested with a mock-up and approved by the patient becomes crucial. This case report aims to exemplify how to transfer the diagnostic information to the patient’s mouth and direct it not only to the restorative dentistry, but also to the surgeon when performing the crown length. Diagnostic waxing was performed by the laboratory technician, obeying anterior posterior incisal and gingival criteria and curvatures, which were transported to an aesthetic guide through mock up to mark the surgical points. Then, surgery to increase the clinical crown with bone access and after healing, direct venners in composite resin also guided by waxing. In conclusion, a workflow can be established using the wax-up / mock-up that serves as a guide for the periodontist in the approach to surgical lengthening of the crown and for the rehabilitator who uses it to produce changes in the shape of dental dimensions .

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