scholarly journals Primary Tooth Mineralization and Exfoliation Ages Calculated from the Moorrees-Fanning-Hunt Study

2018 ◽  
Vol 23 (2) ◽  
pp. 61-65 ◽  
Author(s):  
Edward F. Harris

Staging of the formation of teeth and shedding of the primary teeth are particularly useful for age estimation of archaeological and forensic specimens, as well as for gauging whether a child’s tempo of maturation is progressing within normal limits. Staging can be done using radiographs or with direct inspection of dental remains. Standards for the primary dentition are scarce, but obviously needed for young children. This note provides tables, by sex, of the normative ages of the mineralization of three mandibular tooth types (c, m1, m2) as well as of root resorption and times of shedding of these tooth types. The data are transformed from charts developed by Moorrees, Fanning and Hunt (1963 Am J Phys Anthropol 21:99-108). Conversion to numeric form is intended to aid in using these data for statistical comparisons.

2021 ◽  
Vol 10 (9) ◽  
pp. 619-623
Author(s):  
Viddyasagar Prabhakar Mopagar ◽  
Meghana Vasant Phadnis ◽  
Sourabh Ramesh Joshi ◽  
Vikranth Shetty ◽  
Gowri Swaminatham Pendyala

Avulsion of a primary tooth is a disturbing type of traumatic injury occurring in children. Paediatric dentists are likely to encounter a child with an avulsed primary tooth routinely in their clinical practice. Tooth avulsions are common in permanent teeth. However, avulsions can be seen even in primary teeth. The question of replantation of the avulsed tooth has been a focus of debate and controversy since years. The primary and most important factor in these injuries is to calculate the riskbenefit ratio keeping the underlying permanent tooth in mind. Utmost importance has to be given on the care of development and normal eruptive movements of the succedaneous tooth. This is mandatory if any treatment like replantation is to be done. The amount of primary root resorption, stage of development of the underlying permanent tooth, type of splinting to be done etc. needs a lot of attention. Many authors have given their opinions regarding the replantation of primary teeth based on the type of tooth avulsed. Moreover, the evidence might differ as to whether or not replantation might alter the difficulty levels for the eruption process of succedaneous tooth. There is not much evidence regarding the benefits and risks of replantation post avulsion of primary teeth. However, individual authors have reported a successful outcome in their case reports. This article reports a review on avulsed primary teeth replantation. This would enable the dentists to analyze the risks and benefits associated with replantation, thereby guiding them to arrive at the best clinical decision. KEY WORDS Primary Tooth, Avulsion, Replantation.


2018 ◽  
Vol 23 (4) ◽  
Author(s):  
Agnieszka Bruzda-Zwiech ◽  
Natalia Ciesielska ◽  
Joanna Szczepańska

Most frequent trauma to primary dentitions are injures to the supporting tissue i.e. luxations, but root fractures are relatively uncommon. The difference in the trauma pattern favoring luxation rather than fracture has been found to be typical for the primary dentition, since the elasticity of the alveolar bone surrounding the primary teeth is high and primary tooth held in alveolar socket is less strong. Incidence of foot fractures increases at the age of 3-4 years where physiologic root resorption has begun, thereweakening the root. Traumatic injuries to the primary dentition present special problems and the management is often different as compared with the permanent dentition. Because of potential sequelae of trauma to primary teeth, a treatment method that minimizes any additional risks of further damage to the permanent successors should be selected. The report presents a case of 3.5 year-old boy after traumatic injury – extrusion of tooth 51, which required surgical treatment, and apical third horizontal root fracture of tooth 61 treated conservatively. Written consent from subject’s parents/subject’s legal guardians was obtained. Root-fractured primary tooth has been followed clinically and radiographically for 3.5 year, till advanced root resorption. Presented case and cases described in cited literature demonstrate that conservative treatment of root-fractured primary teeth is a favorable method of the treatment that allows the teeth to function naturally until the term of physiological resorption and exfoliation.


2009 ◽  
Vol 20 (3) ◽  
pp. 179-185 ◽  
Author(s):  
Luciana Villela Rodrigues ◽  
Anilton César Vasconcelos ◽  
Pedro Alves Campos ◽  
Juliana Massote Caldeira Brant

Pulp samples of 50 healthy human teeth with indication for extraction were examined to evaluate the role of apoptosis in pulp elimination during physiological root resorption. Two groups were formed: a test group (n=30) composed of pulp samples of primary teeth with physiological root resorption and a control group (n=20) composed of pulp samples of permanent maxillary third molars. Morphological evidence of apoptosis as well as in situ detection of cellular DNA fragmentation by TUNEL assay and detection of internucleosomal pattern of fragmentation of the genomic DNA by electrophoresis were observed. The apoptotic index of the primary tooth group was significantly higher than that of the permanent tooth group (51.01 ± 0.52 versus 25.32 ± 0.68) (p<0.001). TUNEL reaction showed intense and diffuse labeling in the pulp samples of primary teeth, which were discrete in the controls. Intense DNA internucleosomal fragmentation, a specific pattern for apoptosis, was observed in primary tooth pulps DNA by electrophoresis, in the permanent tooth pulps this pattern fragmentation of the genomic DNA for apoptosis were not present. These results seem to indicate a role of apoptosis in pulp elimination during the physiological root resorption of human primary teeth.


2019 ◽  
Vol 9 (1) ◽  
pp. 37-41
Author(s):  
Shamima Afroz ◽  
Shiren Sultana ◽  
Nushrat Saki ◽  
Mohammad Wahiduzzaman ◽  
Md Abdul Hannan Sheikh ◽  
...  

Background: Pulpotomy is measured as one of the most worldwide accepted favourable clinical procedure for the treatment of deciduous tooth with reversible pulpitis with carious destruction of tooth tissue. Objectives: To evaluate the clinical and radio-graphical findings of primary tooth with reversible pulpitis by Biodentine and Calcium Hydroxide as pulpotomy material. Study Design: Randomized comparative study. Study place and period: Conservative Dentistry & endodontics department of Bangabandhu Sheikh Mujib Medical University, Dhaka, September 2013 to September 2014. Study Population: The study population comprised of patients having primary tooth with reversible pulpitis irrespective of sex. Methods/Procedure: According to inclusion and exclusion criteria, out of 100 primary teeth 50 teeth were treated with Biodentine (Group-A) and the remaining 50 teeth were treated with Ca(OH)2 (Group-B). Clinical and radiographic follow up examination were done at 3months,6 months and 12 months’ interval to evaluate the rate of postoperative pain, swelling and periapical radiolucency. Statistical package for Social Science (SPSS) version 17 was used to analyze the collected data Main outcomes measures (s): 01. Pain 02. Dentinal bridge 03. Root resorption Results: At 3 months observation period, Biodentine and Ca(OH)2 pulptomy of primary teeth showed 100% success rate in treating teeth with reversible pulpitis; neither pain nor swelling or radiographic sign of resorption was observed. At 6 and 12 months following the completion of treatment except in two case in group A and four case in group B in observation period, there results were similar to that of 3 months. Two Biodentine (4%) and four Ca(OH)2 (8%) therapy reported pain, swelling. There was no statistical difference between the two group (p>0.05). Conclusion: So, we can say that clinical and radiographic end result of Biodentine is better than Ca(OH)2 as a pulpotomy material in mature primary tooth with reversible pulpitis. Update Dent. Coll. j: 2019; 9 (1): 37-41


Author(s):  
F. S. Ayupova ◽  
S. N. Alekseenko ◽  
V. Ya. Zobenko ◽  
T. V. Gayvoronskaya

Relevance. To study the incidence of different types of resorption of multirooted primary teeth, to specify indications for deciduous molar extraction to prevent eruption abnormalities of permanent posterior teeth in mixed dentition.Materials and methods. Root resorption of 375 multirooted primary teeth (166 first primary molars and 209 second primary molars) was studied on panoramic X-rays of 60 children (30 girls and 30 boys) aged between 7 and 15. Illustrated classification by T.F. Vinogradova (1967) improved by authors was used to determine type and degree of root resorption of multi-rooted primary teeth. Received data were described with absolute values of number of cases and percentage. Chi-square was used to detect differences in sign incidence rate between groups, p<0.05 was considered statistically significant.Results. There were no statistically significant gender differences (p>0,05) in type and degree of root resorption of multirooted primary teeth. Type A resorption prevailed and constituted 53.3% of all primary molars. Disturbances in root resorption of multirooted primary teeth in mixed dentition were related to health condition of primary teeth. Transition of even resorption to unven was considered a risk factor of delayed eruption and aberrant position of permanent teeth, and indication for extraction of a primary molar in question. Conclusions. 1) Even root resorption (type A) was detected in 53.3% of primary molars in mixed dentition by orthopantomography. 2) Transition from even resorption of primary molar roots to uneven resorption was associated with eruption deviations and delayed premolar eruption. 3) Timely extraction of primary molars with uneven root resorption facilitated correct eruption of premolars and increased effectiveness of secondary prevention of malocclusion in children.


2000 ◽  
Vol 24 (4) ◽  
pp. 269-272 ◽  
Author(s):  
Hamijeta Ibricevic ◽  
Qumasha Al-Jame

Seventy primary molar teeth, carious exposed, symptom free, without any sign of root resorption in children aged from 3 to 6 years (main age 4.3yr) were treated with conventional pulpotomy procedures. Ferric sulfate 15.5% solution (applied for 15 second for 35 teeth) and formocresol solution (five minute procedure of Buckley's formula for next 35 teeth) have been used as pulpotomy agents. In both groups, pulp stumps were covered with zinc-oxide eugenol paste. Permanent restorations were stainless steel crowns. Clinical check up was every three-months and radiographic follow-up time was six and twenty months after treatment. Our results within this period revealed 100% clinical success rate in both groups. Radiographic success rate was in both groups 97.2%, while in 2.8% cases has shown internal root resorption. On the basis of these results, we can recommend ferric sulfate as a pulpotomy agent in primary teeth in substitution for formocresol at the moment.


2019 ◽  
Vol 35 (2) ◽  
pp. 101-108 ◽  
Author(s):  
Andomar B. F. Vilela ◽  
Priscilla B. F. Soares ◽  
Fabiana S. de Oliveira ◽  
Tales C. Garcia-Silva ◽  
Carlos Estrela ◽  
...  

2021 ◽  
Vol 6 (4) ◽  
pp. 105-110
Author(s):  
Nadia Irshad Wani ◽  
Navneet Kour ◽  
Manju Verma

Background: the main idea behind the pulpotomy of a primary tooth is to remove the infected or inflamed coronal pulp tissues and cover the pulp with a suitable medicament or dressing which promotes healing and preserve the vitality of the teeth especially in young permanent teeth. A medicament should be biologically compatible, have healing capabilities, should be non cytotoxic, or mutagenic and with no carcinogenic potential. Aim: the main aim of the study was to compare and evaluate the efficacy of commonly used two medicaments i.e. formocresol and sodium hypochlorite in pulpotomy of mandibular primary teeth. Material and methodology: a randomized controlled single blinded clinical trial was done on 50 subjects of age ranging from 3 to 6 years with bilateral mandibular first or second molar requiring pulpotomy. The subjects were randomly divided into two groups with 25 subjects in each. Group I, consisted of subjects on which formocresol medicament was used after extirpation of coronal pulp while in Group II, 3% sodium hypochlorite was used. Clinical along with the radiographic signs and symptoms were blindly recorded at an interval of 1, 3, 6 and 12 months respectively. Results: Statistically significant results were obtained in group II, when patients treated with 3% sodium hypochlorite. There was no major difference between the two medicaments used, but to the various adverse effects of formocresol, its usage has been limited. Conclusion: within the limitation of the study, it was concluded that sodium hypochlorite medicament proved to have better prognosis and can be suggested as a pulpotomy agent for primary teeth. Although formocresol was found to have similar significant results can also be used as a medicament. Keywords: Formocresol, Pulpotomy, Primary Teeth, Sodium Hypochlorite


2021 ◽  
Author(s):  
Burcu Duman ◽  
Salih Doğan

Abstract BackgroundSurface roughness is one of the main factors affecting bacterial adhesion, biofilm growth, plaque formation and coloration on the tooth surface. Improper polishing may increase roughness or not contribute to a reduction in roughness while removing biofilms on tooth surfaces. The aim of this study is to examine the effects of different polishing pastes applied to the enamel of primary teeth on the surface roughness through AFM, which enables a more detailed examination of the measurements, and to evaluate the roughness changes created by the paste on the surface. MethodsIn the present study, in order to compare polishing made using Septodent Détartrine, Kerr Cleanic, Shofu Mersaage Regular under the recommendations of the companies in addition to the application of pumice with a rubber brush, a total of 88 samples with 22 samples in each group were created using 88 primary molar teeth. Before and after polishing, roughness measurements and visualizations were performed with atomic force microscopy (AFM). After polishing, Ra (average roughness) values, which express the surface roughness of the re-scanned samples, were calculated so that the samples were the same as the first scanning. For statistical analysis, Shapiro-Wilk normality test and generalized linear models tests were applied and p <0.05 was considered as statistically significantResultsIn the groups; while there was no significant difference in terms of roughness values ​​(Ra) within the group (p> 0.05), a statistically significant reduction in roughness (Ra) was observed on the sample surfaces after polishing in all groups compared to the baseline (p <0.05). According to the data obtained; all polishing methods used in the treatment of primary tooth discoloration can reduce the plaque formation and thus the amount of recoloring by reducing the surface roughness at a similar level.ConclusionAccordingly, it has been observed that the current polishing pastes do not provide a significant advantage over the traditional polishing method (polishing brush with pumice) in terms of surface roughness in removing discoloration in primary teeth.


Sign in / Sign up

Export Citation Format

Share Document