scholarly journals Manutenção de espaço: da etiologia à interceptação

2021 ◽  
Vol 12 (1) ◽  
pp. 32
Author(s):  
Fernanda Catharino Menezes Franco ◽  
Telma Martins De Araújo ◽  
Ana Carla Souza Nascimento
Keyword(s):  
Tooth Loss ◽  
Potential Problem ◽  
Deciduous Teeth ◽  
Early Loss ◽  
Stomatognathic System ◽  
Removable Appliances ◽  
Plaster Models ◽  
Early Tooth Loss ◽  
Tooth Migration ◽  
Made In

INTRODUCTION: the maintenance of space, when early loss of primary teeth occurs, prevents a potential problem - tooth migration - from determining the formation of a malocclusion, constituting a preventive orthodontic maneuver. The loss of a deciduous tooth is considered premature when it is lost before its permanent successor has started the process of eruption. OBJECTIVE: this article aims to review the literature related to the early loss of deciduous teeth, emphasizing its etiology, its consequences on the development of the stomatognathic system, and, also, the devices indicated to prevent the establishment of malocclusions. METHODS AND MATERIALS: the search for the referenced articles was carried out in the PubMed and Google Scholar databases. Laboratory appliances were made in plaster models in order to demonstrate the possibilities and indications of fixed or removable appliances, for different situations involving early tooth loss. CONCLUSION: preventing and intercepting incipient problems is much easier than correcting them in the future.

scholarly journals Effects of Fixed and Removable Space Maintainers on Dental Plaque and DMFT/dft Values

2020 ◽  
pp. 274-284
Author(s):  
Aliye Tugce Gurcan ◽  
Mine Koruyucu ◽  
Sinem Kuru ◽  
Elif Sepet ◽  
Figen Seymen
Keyword(s):  
Dental Plaque ◽  
Tooth Loss ◽  
Plaque Index ◽  
Permanent Teeth ◽  
Dental Appliance ◽  
Fixed Space ◽  
Pre Treatment ◽  
Index Level ◽  
Removable Appliances ◽  
Early Tooth Loss

Purpose: Space maintainers are important for the health and placement of children’s primary and permanent teeth. However, plaque and caries levels can be negatively affected when a dental appliance is in the mouth. This study aims to evaluate the oral health of pediatric patients that have space maintainers applied as a result of early tooth loss. Methods: This study included 100 systemically healthy patients between the ages of 4-15 years that were treated with space maintainers due to early loss of teeth. Decayed, missing, filled tooth index values and dental plaque status of the participants were recorded. Controls were performed in the 6th and 12th month. The index results were compared and evaluated statistically using ANOVA and paired-t-tests. Results: A total of 116 space maintainers, including 36 band and loops, 16 lingual arches, 21 palatal arches, 43 removable appliances, were evaluated in the study. Statistically significant differences were found between the pre-treatment and post-treatment index values (p<0.001). In the group of band and loops and removable space maintainers; the increases in DMFT/dft values of 6th month and 12th month according to initial DMFT/dft values were statistically significant (p<0.05). For plaque index, the increase in 12th month of all types of appliances were found statistically significant (p<0.001). The greatest increase in plaque index level was seen in the teeth of patients that had been treated with a lingual arch. Conclusions: Incompatible space maintainers can lead to caries, increased plaque accumulation, demineralized areas, and periodontal problems. The accumulation of plaque and difficulty of cleaning the teeth, especially in the fixed space maintainers, negatively affects the health of teeth. For this reason, good oral hygiene should be provided to patients and controls should be regularly performed.

Clinical and anthropometric analysis of anatomical and physiological condition in geriatric patients with total tooth loss

2014 ◽  
Vol 18 (4 (72)) ◽  
Author(s):  
M. M. Vatamaniuk ◽  
O. B. Belikov
Keyword(s):  
Tooth Loss ◽  
Geriatric Patients ◽  
Physiological Condition ◽  
Upper Jaw ◽  
Plaster Models ◽  
Edentulous Jaws ◽  
Made In

The analysis of 50 pairs of plaster models of edentulous jaws in patients of both sexes aged from 75 to 90 years has been made. In 44,0 % of them the position of the jaws was neutral, in 32,0 % it was medial, and in 24,0 % – distal. A shift of the mandible relative to the upper jaw was in the range of 0,1-1,0 cm. Interalveolar height was in the range of 1,5 to 3,1 cm. There were no absolutely identical in size, shape and degree of atrophy toothless jaws.

Pseudogenized Amelogenin Reveals Early Tooth Loss in True Toads (Anura: Bufonidae)

2021 ◽  
Author(s):  
John Shaheen ◽  
Austin B Mudd ◽  
Thomas G H Diekwisch ◽  
John Abramyan
Keyword(s):  
Tooth Loss ◽  
Tooth Enamel ◽  
Synonymous Substitution ◽  
Bufo Bufo ◽  
Molecular Dating ◽  
Bufo Gargarizans ◽  
The Family ◽  
Synonymous Substitution Rates ◽  
Mandibular Teeth ◽  
Early Tooth Loss

Abstract Extant anurans (frogs and toads) exhibit reduced dentition, ranging from a lack of mandibular teeth to complete edentulation, as observed in the true toads of the family Bufonidae. The evolutionary timeline of these reductions remains vague due to a poor fossil record. Previous studies have demonstrated an association between the lack of teeth in edentulous vertebrates and the pseudogenization of the major tooth enamel gene amelogenin (AMEL) through accumulation of deleterious mutations and the disruption of its coding sequence. In the present study we have harnessed the pseudogenization of AMEL as a molecular dating tool to correlate loss of dentition with genomic mutation patterns during the rise of the family Bufonidae. Specifically, we have utilized AMEL pseudogenes in three members of the family as a tool to estimate the putative date of edentulation in true toads. Comparison of AMEL sequences from Rhinella marina, Bufo gargarizans and Bufo bufo, with nine extant, dentulous frogs, revealed mutations confirming AMEL inactivation in Bufonidae. AMEL pseudogenes in modern bufonids also exhibited remarkably high 86–93% sequence identity among each other, with only a slight increase in substitution rate and relaxation of selective pressure, in comparison to functional copies in other anurans. Moreover, using selection intensity estimates and synonymous substitution rates, analysis of functional and pseudogenized AMEL resulted in an estimated inactivation window of 46-60 MYA in the lineage leading to modern true toads, a timeline that coincides with the rise of the family Bufonidae.

scholarly journals Semi-Fixed Space Maintainer Treatment In Premature Loss Deciduous Tooth

2020 ◽  
Vol 5 (2) ◽  
pp. 9-21
Author(s):  
Nabila Clara ◽  
Jeffrey .
Keyword(s):  
Child Development ◽  
Growth And Development ◽  
Loop Space ◽  
Tooth Loss ◽  
Development Process ◽  
Deciduous Teeth ◽  
Lower Jaw ◽  
Space Maintainer ◽  
Fixed Space ◽  
Jaw Model

Introduction: The period of deciduous teeth is an important period in child development. Damage to deciduous teeth that occur and cannot be treated conservatively will cause premature decay of teeth which is often called premature loss. A space maintainer is a passive tool used to maintain dental arches due to premature loss of deciduous teeth. Method: An 11-year-old girl accompanied by her mother came to RSGMP Unjani in 2018 with complaints of lower right back teeth missing because they have removed. The patient's mother is worried that her replacement teeth will not grow properly. Intraoral examination revealed tooth loss 85. The study model was analyzed using the Moyers method. Results: Analysis of the lower jaw model showed excess space. Patients were treated with a semi-fixed band and loop space maintainer on teeth 85. Conclusion: Premature loss results in excess space in the arch, so as to prevent further occlusion abnormalities in the child's growth and development process, we need a special tool used to maintain space due to premature loss of deciduous teeth.

scholarly journals Frequency and distribution of early tooth loss and endodontic treatment needs of permanent first molars in a Turkish pediatric population

2013 ◽  
Vol 07 (S 01) ◽  
pp. S099-S104 ◽  
Author(s):  
Sezer Demirbuga ◽  
Oznur Tuncay ◽  
Kenan Cantekin ◽  
Muhammed Cayabatmaz ◽  
Asiye Nur Dincer ◽  
...  
Keyword(s):  
Tooth Loss ◽  
Statistical Difference ◽  
Pediatric Population ◽  
Age Groups ◽  
Endodontic Treatment ◽  
Treatment Needs ◽  
Endodontically Treated Teeth ◽  
Chi Square ◽  
Gender Factor ◽  
Early Tooth Loss

ABSTRACT Objectives: The objective of this study is to evaluate the frequency and distribution of early tooth loss and endodontic treatment needs of permanent first molars in a Turkish pediatric population. Materials and Methods: A total of 7,895 panoramic radiographs taken for routine dental examination at the Department of Oral Maxillofacial Radiology between 2008 and 2012 years were investigated. Two independent specialists evaluated early tooth loss and endodontic treatment needs of permanent first molars using panoramic radiography and patient anamnesis forms. The teeth were classified according to the following data: (a) Missing teeth, (b) teeth requiring extraction, (c) endodontically treated teeth (ETT), (d) teeth requiring endodontic therapy. The data also classified according to four factors: Age group (6-12 and 13-16), gender (boy and girl), jaw (mandible and maxilla) and side (right and left). A Chi-square test was used for statistical analyses. Results: A total of 19,488 and 12,092 teeth were evaluated in the child group and adolescent group respectively. All data were higher in adolescents than children (p < 0.001). For gender factor, only ETT was higher in girls than it was in boys (p < 0.001). For the jaw factor, all data were higher (p < 0.001) in mandible than in the maxilla. For the side factor, no statistical difference existed between right and left. Conclusions: Early tooth loss and endodontic treatment needs of permanent first molars showed variability according to age groups and jaws. When the results were compared according to the side and gender factors, no statistical difference was found (p > 0.05) except with the data of ETT in gender groups.

Some quantitative dental characteristics of the chimpanzee, gorilla and orang-outang

1950 ◽  
Vol 234 (616) ◽  
pp. 471-484 ◽  
Keyword(s):  
Standard Deviation ◽  
Standard Error ◽  
Statistical Data ◽  
Age Groups ◽  
Permanent Dentition ◽  
Small Samples ◽  
Permanent Teeth ◽  
Deciduous Teeth ◽  
The Mean ◽  
Made In

Measurements have been taken of the crowns of the teeth of seventy-nine chimpanzees, eighty-nine gorillas and sixty-three orang-outangs. Basic statistical data, comprising the mean, the number of skulls, the standard deviation and the standard error of the mean, are presented for forty-eight dimensions and indices of the deciduous teeth and for seventy-eight of those of the permanent dentition of each type of ape. A separation between the sexes has been made in the case of the permanent teeth. Further separation has been made into age groups, where necessitated by changes in dimensions due to wear. Even with the small samples resulting from these subdivisions, the standard error is seldom greater than 4 % of the mean, and therefore the figures obtained are reliable estimates of the variability of the teeth of apes. The data provide a basis for quantitative comparisons between the teeth of existing and fossil anthropoids.

scholarly journals Aging Trends and Impact on Dental Practice

2011 ◽  
Vol 1 (2) ◽  
pp. 101-104 ◽  
Author(s):  
Amir Catic ◽  
Adnan Catovic ◽  
Dragutin Komar
Keyword(s):  
Low Income ◽  
Tooth Loss ◽  
Dental Treatment ◽  
Treatment Options ◽  
The Elderly ◽  
Team Approach ◽  
World Population ◽  
Dental Practice ◽  
Stomatognathic System ◽  
Organ Changes

ABSTRACT Aging is a process that takes place in every living individual. Every 10th person of the world population is 60 years old or above. Chronic diseases, low income and social status of the elderly, together with physiological changes caused by aging, affect the condition of the stomatognathic system. In the present article many studies are demonstrated considering tooth loss, state of the stomatognathic system and dental appliances as well as different organ changes in elderly through the years in different countries. The team approach of medical and dental experts in treating elderly patients is emphasized as well as different dental treatment options depending on general health factors.

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