scholarly journals Interrelations Between Odonto-Parodontal Affects of the First Permanent Molar and their Odontogenetic and Morfostructural Peculiarities

2018 ◽  
Vol 69 (11) ◽  
pp. 3310-3314
Author(s):  
Daniela Anistoroaei ◽  
Madalina Nicoleta Matei ◽  
Mariana Pacurar ◽  
Roxana Buzatu ◽  
Anca Porumb ◽  
...  
Keyword(s):  
Vertical Plane ◽  
Subsequent Development ◽  
Close Correlation ◽  
Pediatric Dentistry ◽  
Mixed Dentition ◽  
Permanent Molar ◽  
Stable Element ◽  
Group I ◽  
Permanent Occlusion ◽  
Dental Arcade

The permanent first molar is the first tooth in the permanent series that erupts into the archway and thus transforms the temporary dental arcade into mixed arcade, being the only stable element throughout the mixed dentition. The plurivalent importance of the permanent molar must be considered permanently in the harmonious development of the dento apparatus. This tooth has a determining role in dental arcade functionality, being the oldest witness of the permanent occlusion. The permanent first molar is a guardian of the occlusal memory and contributes to the agreement of the predetermined with the posterior one (the temporo-mandibular joint). The first permanent molar improves the relationships in the vertical plane, the early loss of it generates morphological and functional disorders which takes place cascaded across the arcade, and its extraction must be considered a personal failure of the dentist. The study consists of 80 patients divided into two groups; the group I consists of 45 children with chronological ages ranged between 5-6.6 years; the second group selected from dental care, a total of 35 children aged between 8.6-10 years. Dental caries morbidity has increased significantly over time and surprised by age the younger becoming a true social scourge. The current pediatric dentistry emphasizes new aspects of the normal and pathological growth of the dento-maxillary apparatus and underlines the special significance of the morpho-structural and functional integrity of the odontous units in close correlation with the subsequent development of the dento-maxillary apparatus in general.

scholarly journals Children’s Oral Health on Pico Island, Azores (Portugal)

2021 ◽  
Vol 5 (1) ◽  
pp. 24
Author(s):  
Juliana Pereira ◽  
Gunel Kizi ◽  
Ana Raquel Barata ◽  
Irene Ventura
Keyword(s):  
Oral Health ◽  
Pediatric Population ◽  
Pediatric Dentistry ◽  
Mixed Dentition ◽  
Class I ◽  
Social Solidarity ◽  
Children’S Oral Health

Pediatric dentistry focuses on children’s oral health. The aim of this study was to describe the prevalence of malocclusion in a pediatric population. Eighty-two children (3–12 years old), of both genders, who belong to a Social Solidarity Institution for Children in Pico Island were clinically examined. Half were female and half were male, in which most were 7 years old (20.7%) with mixed dentition (58.5%). The highest prevalence was in canine class I and vertical molar. Most children did not have malocclusion characteristics (56.1%).

scholarly journals Influence of premature loss of the first permanent molar on the dental arches morphology – radiological evaluation

2017 ◽  
Vol 63 (4) ◽  
pp. 180-183
Author(s):  
Andreea Pop ◽  
◽  
Radu Septimiu Câmpian ◽  
Mariana Păcurar ◽  
Ecaterina Ionescu ◽  
...  
Keyword(s):  
Morphological Changes ◽  
Vertical Plane ◽  
Radiological Evaluation ◽  
Panoramic Radiographs ◽  
Permanent Molar ◽  
Permanent Molars ◽  
First Permanent Molars ◽  
Over Time

Objectives. The purpose of this research was to radiological identify the morphological changes of the dental arcades resulting from the premature loss of the permanent first molars. Material and method. The study was conducted between 2014-2016 on a group of 50 patients aged 12-15 years who presented themselves with the imminence of premature loss of the first permanent molars. 1: 1 panoramic radiographs were performed before the extractions and at 6 and 12 months after the extractions respectively. Results and discussions. The changes in position of the antagonist teeth and those of the second permanent molars, in the two dental arches, both in the sagittal and in the vertical plane were revealed. Conclusions. The premature loss of the first permanent molars, especially after the eruption of the second permanent molars, causes unwanted dental movements and severe dental-maxillary abnormalities over time.

scholarly journals Oral conditions of pediatric patients with Williams-Beuren syndrome: two case reports

2019 ◽  
Vol 22 (2) ◽  
pp. 281-288
Author(s):  
Flávia Silva Pires ◽  
Viviane Andrade Cancio Paula ◽  
Khawana Faker ◽  
Natalia Di Lanaro ◽  
Raissa Christiane O de Carvalho ◽  
...  
Keyword(s):  
Congenital Heart Disease ◽  
Heart Disease ◽  
Case Report ◽  
Congenital Heart ◽  
Prophylactic Antibiotic ◽  
Pediatric Dentistry ◽  
Mixed Dentition ◽  
Psychomotor Development ◽  
Deciduous Teeth ◽  
Oral Conditions

Objective: The objective of this paper was to describe the oral conditions of two children accompanied by their mothers who reported to the Department of Pediatric Dentistry of Fluminense Federal University with Williams-Beuren syndrome (WBS). Case report: The 9-year-old female patient had a family and medical history significant for placental abruption, caesarean section, delayed psychomotor development, learning disabilities, tendency to selfdistract and congenital heart disease. In contrast, the 7-year-old male patient had a normal birth and no gestational intercurrences. Discussion: Clinically, the female presented with mixed dentition, crowding in the maxillary and mandibular arches, prolonged retention of deciduous teeth, anterior and posterior cross-bite and Angle Class I malocclusion, while the male had mixed dentition and retarded psychomotor development. Due to the patients having congenital heart disease, a prophylactic antibiotic regimen was prescribed prior to the dental procedures in both of them. Conclusion: These patients had been followed up for 2 years and this case report underscores the importance of early dental evaluation and counselling for parents of WBS patients.KeywordsWilliams Beuren syndrome; Oral manifestations; Child.

scholarly journals A Comparative Three-Dimensional Finite Element Study of Two Space Regainers in the Mixed Dentition Stage

2020 ◽  
Vol 14 (01) ◽  
pp. 107-114
Author(s):  
Mohamed Ahmed Abdel Hakim ◽  
Nagwa Mohamed Ali Khatab ◽  
Kareem Maher Gaber Mohamed ◽  
Ahmad Abdel Hamid Elheeny
Keyword(s):  
Finite Element ◽  
Stress Distribution ◽  
Three Dimensional ◽  
The Other ◽  
Mixed Dentition ◽  
Von Mises Stress ◽  
Stress Concentrations ◽  
Permanent Molar ◽  
Dimensional Finite Element ◽  
Three Dimensional Finite Element

Abstract Objectives This study aims to compare the stress distribution and displacement that resulted from the use of a Gerber space regainer and sagittal distalizer using three-dimensional finite element analysis. Materials and Methods Three-dimensional simulated models of the appliances were developed using a software. The forces applied by the two appliances were 3N (tipping) and 15N (bodily), respectively. Displacement and von Mises stress on the compact and cancellous bone, periodontal ligament (PDL), crowns of the mandibular first, second permanent molars, and deciduous canines were calculated. Stress distribution and displacement values were measured via linear static analysis. Results Gerber space regainer showed greater displacement than that produced by the sagittal distalizer at the first permanent molar. However, such displacement was less at the other tested points when compared with that delivered by sagittal distalizer. The stresses created by Gerber appliance were higher in the crown and PDL of the deciduous canine than the crown of the first permanent molar crown. Conclusions Gerber appliance generates more distal force and less stress concentration on the crown of the mandibular first permanent molar than that created by the sagittal distalizer. On the other hand, stress concentrations produced by Gerber space regainer are found to be more on the crown and PDL of the deciduous canine. Therefore, it can be concluded that the use of Gerber appliance needs more anchorage.

scholarly journals Immunoassay analysis of proteins in gingival crevicular fluid samples from resorbing teeth

2015 ◽  
Vol 86 (2) ◽  
pp. 187-192 ◽  
Author(s):  
Wellington J. Rody ◽  
Manjula Wijegunasinghe ◽  
L. Shannon Holliday ◽  
Kevin P. McHugh ◽  
Shannon M. Wallet
Keyword(s):  
Root Resorption ◽  
Gingival Crevicular Fluid ◽  
Interleukin 1 ◽  
Skewed Distribution ◽  
Mixed Dentition ◽  
Deciduous Teeth ◽  
Permanent Molar ◽  
Dentin Sialoprotein ◽  
Deciduous Molar ◽  
Crevicular Fluid

ABSTRACT Objective:  To carry out an immunoassay analysis of biomarkers expressed in gingival crevicular fluid (GCF) with the main goal of finding a useful diagnostic pattern to distinguish between resorbing deciduous teeth and nonresorbing controls. Materials and Methods:  A split-mouth design was used in this study with a total of 22 GCF samples collected from 11 patients in the mixed dentition. For each child, one deciduous molar with radiographic evidence of root resorption was used as the test tooth whereas the contralateral first permanent molar with formed roots was used as the control tooth. Samples were processed with immunoassays using a panel of selected biomarkers including interleukin-1 beta (IL-1b), interleukin-1 receptor antagonist (IL-1RA), nuclear factor kappa B ligand (RANKL), osteoprotegerin (OPG), matrix metalloproteinase-9 (MMP-9), and dentin sialoprotein (DSP). Results:  There were no statistically significant differences in levels of IL-1b, OPG, and MMP-9 between test and control sites (P > .05). IL-1RA was the only biomarker to show a significant down-regulation (P  =  .04) in GCF samples collected from resorbing teeth. RANKL data showed a heavily skewed distribution and was deemed unreliable. Only one deciduous GCF sample had detectable levels of DSP; therefore, no further statistical calculation was applicable because of the limited amount of data for this biomarker. Conclusions:  This study indicated that IL1-RA is down-regulated in GCF from resorbing primary molars, thus suggesting this cytokine as a potential analyte to be included in a panel that can discriminate between resorbing and nonresorbing teeth.

scholarly journals Effects of Gender and Age in Mandibular Leeway Space for Taiwanese Children

Children ◽  
2021 ◽  
Vol 8 (11) ◽  
pp. 999
Author(s):  
Kuo-Ting Sun ◽  
Yun-Zhen Wu ◽  
Jui-Ting Hsu ◽  
Min-Chia Tsai ◽  
Heng-Li Huang
Keyword(s):  
Retrospective Study ◽  
Gender Difference ◽  
Pediatric Dentistry ◽  
Permanent Tooth ◽  
Mixed Dentition ◽  
Permanent Teeth ◽  
Tooth Size ◽  
Crown Width ◽  
Gender And Age ◽  
Lower Arch

Purpose: Leeway space is clinically crucial in pediatric dentistry because it is utilized to resolve tooth crowding and allow the first molars to drift mesially to establish a Class I molar relationship in the later stages of mixed dentition. This study investigated leeway space in the mixed dentition of Taiwanese children of different sexes and ages. Materials and Methods: The digital panoramic dental films of 182 lower arches of 119 boys and 63 girls aged 5–10 years were analyzed in this retrospective study. The mesiodistal crown widths of the primary canines and first and second molars and the permanent canines and first and second premolars were measured using medical imaging software. Differences in leeway space were statistically analyzed. Results: The average leeway space was 1.29 ± 1.48 mm on each side of the lower arch. The leeway space of children aged 5–6 years was significantly greater than that of children aged 7–8 years. No gender difference in crown width was discovered, except with regard to the primary first molar. Although no gender difference in leeway space was observed, permanent teeth affected leeway space more for girls than for boys. Conclusion: In Taiwanese children, although leeway space does not differ by sex, age affects leeway space. However, permanent tooth size has an influence on the leeway space of girls.

scholarly journals Caries Pattern In Primary Molars With Early Pulpal Involvement In Mixed Dentition

2021 ◽  
Vol 4 (10) ◽  
pp. OR1-OR6
Author(s):  
Deepti Arora ◽  
Anil Gupta ◽  
Shalini Garg ◽  
Ankit Srivastava ◽  
Shikha Dogra ◽  
...  
Keyword(s):  
Subsequent Development ◽  
Mixed Dentition ◽  
Caries Experience ◽  
P Value ◽  
Occlusal Caries ◽  
Cross Sectional ◽  
Proximal Caries ◽  
Need For Treatment ◽  
Occlusal Surfaces ◽  
Distal Surface

INTRODUCTION: Caries in primary dentition may lead to high risk in permanent dentition; it is therefore important to identify those children who are caries affected. Specific and distinct patterns of caries attack might indicate a distinct etiology or are most likely associated with the subsequent development of carious lesions on other surfaces of teeth.AIM: To assess caries susceptibility and prevalence in primary teeth and evaluate the prevalence of caries according to individual molar surfaces in 4-8 year old children.MATERIAL AND METHODS: A cross sectional retrospective study was conducted in the pediatric department of SGT Dental College using convenient sampling with caries in teeth as chief complaint. 70 radiographs were examined in the age group of 4-8 years. Lesions present on mesial, distal and occlusal surfaces were recorded on the chart after radiographic examination.RESULTS: As per results, distal surface of D(45.40%) and mesial surface of E (37.80%) showed maximum caries on adjacent proximal surfaces and significant dependence (p value<0.05) was found between the presence of lesions on adjacent proximal surfaces. The D(76.1% )and E(79.1% )showed significantly higher caries experience on the proximal surfaces in conjunction with occlusal caries but were statistically not significant.CONCLUSION: In the presence of non-proximal caries (occlusal caries), the chances of proximal caries are increased as seen radiographically. Thus need for treatment, are likely being underestimated during visual examinations alone.

scholarly journals POSITION OF HEADS OF TEMPOROMANDIBULAR JOINT IN PATIENTS WITH MALOCCLUSION

2020 ◽  
Vol 20 (3) ◽  
pp. 64-67
Author(s):  
V.D. Kuroiedova ◽  
O.A. Stasiuk ◽  
Ye.Ye. Vyzhenko ◽  
Yu.K. Sokolohorska-Nykina
Keyword(s):  
Temporomandibular Joint ◽  
Permanent Dentition ◽  
Mixed Dentition ◽  
Correct Position ◽  
Rotational Displacement ◽  
Age Related ◽  
Group I ◽  
Number Of Patients ◽  
Left And Right ◽  
Age Related Changes

This article describes the assessment of the condition, symmetry of temporomandibular joint and timely diagnosis of its dysfunction based on to H. Gelb method in malocclusion. The objective of this study was to investigate the position and assess the symmetry of the temporomandibular joint heads according to H. Gelb in cases of malocclusion. Materials and мethods. The study was based on analysis of computed tomographs of 70 patients with malocclusion. Depending on the stage of the occlusion development, the patients were divided into two groups: I group included 30 patients with mixed dentition and II group included 40 patients with permanent dentition. Results. The results obtained demonstrated that regardless of the pathology of the occlusion and age, only 8 patients had the correct bite, i.e. the symmetrical position of the temporomandibular joint heads in the Gelb 4/7 position. The most frequent symmetric position of the articular heads in the patients of the I group I was the Gelb ¼ position found in 16 patients; the Gelb 1/5 position was revealed in 8 patients of the II group that can be explained as age-related changes in the displacement of the articular heads from the Gelb 1/4 to 1/5 position. Conclusions. According to the results of our research, it was found that regardless of the malocclusion and age, patients who have the correct position of the temporomandibular joint heads on the left and right in the Gelb 4/7 position make up only 10.52%. The age-related dynamics of the rotational displacement of the centre of the articular heads from the Gelb 1/4 to 1/5 position has been observed, and the number of patients with the asymmetric position of the temporomandibular joint articular heads is increaing.

scholarly journals Aesthetic and functional rehabilitation of anterior teeth after trauma: a case report

2018 ◽  
Author(s):  
Kelly Guedes de Oliveira Scudine ◽  
Kelly Maria Silva Moreira ◽  
Micaela Cardoso ◽  
Stéphanie Marani Martins Araújo ◽  
Regina Maria Puppin-Rontani ◽  
...  
Keyword(s):  
Treatment Plan ◽  
Preventive Treatment ◽  
Pediatric Dentistry ◽  
Mixed Dentition ◽  
Functional Rehabilitation ◽  
Patient’S Satisfaction ◽  
Anterior Teeth ◽  
The Aesthetic ◽  
Dental Injuries

Traumatic dental injuries are common clinical problems during childhood, and may have complex etiologies causing physical and physiological impairment. The aim of this study was to report the management of a severe traumatic dental injury in an 8-year-old female patient, victim of a motorcycle accident, who was taken to a pediatric dentistry clinic three months after the accident. After clinical and radiografic examination, we observed the avulsion of the permanent maxillary central incisors and of the permanent left lateral incisor, with considerable lingual interposition, interfering in speech and swallowing. The patient showed low risk of caries and good behavior during the appointments. However, she demonstrated to be embarrassed to smile. Besides the preventive treatment concerning caries, the treatment plan included immediate care and subsequent monitoring of the psychosocial reestablishment. For this purpose, an acrylic partial denture was made in order to replace the missing anterior teeth, maintaining the characteristics of the mixed dentition and preserving the aesthetics and the function. Follow-up appointments were performed one, three and six months after the first visit, aiming to monitor the adaptation of the prosthesis, as well as the growth and development of the child’s dentition. Thus, the aesthetic and functional rehabilitation was achieved regarding the patient’s satisfaction, enabling immediate social reinsertion.

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