scholarly journals Evaluation of the regenerative potential of dentin conditioning and naturally derived scaffold for necrotic immature permanent teeth in a dog model

2020 ◽  
Vol 101 (6) ◽  
pp. 264-276
Author(s):  
Hisham M. El Halaby ◽  
Ashraf M. Abu‐Seida ◽  
Mervat I. Fawzy ◽  
Mona H. Farid ◽  
Hagar A. Bastawy
Keyword(s):  
Permanent Teeth ◽  
Dog Model ◽  
Dentin Conditioning

scholarly journals Autologous transplantation of deciduous tooth pulp into necrotic young permanent teeth for pulp regeneration in a dog model

2019 ◽  
Vol 47 (10) ◽  
pp. 5094-5105
Author(s):  
Yan Huang ◽  
Xiaoying Tang ◽  
Zafer C. Cehreli ◽  
Xiaoyun Dai ◽  
Jiangjingjun Xu ◽  
...  
Keyword(s):  
Autologous Transplantation ◽  
Deciduous Tooth ◽  
Permanent Teeth ◽  
Tooth Pulp ◽  
Control Group ◽  
Pulp Tissue ◽  
Root Canals ◽  
Dog Model ◽  
Experimental Group ◽  
Immunohistochemical Analyses

Objectives To investigate the potential for pulpal regeneration via autologous transplantation of deciduous tooth pulp into immature necrotic permanent teeth using an experimental dog model. Methods Experimental apical periodontitis was induced in 60 teeth of six Beagle dogs. Following canal disinfection and pulpotomy, autologous deciduous pulp tissue was transplanted into the root canals (n = 30); as controls, contralateral teeth were treated in accordance with the recommendations of the American Association of Endodontists. Radiographic examinations were performed immediately before transplant, as well as 3 and 6 months after transplant. At the 6-month examination, root samples were collected and histological and immunohistochemical analyses were used to examine tissue regeneration. Results Radiographic analysis showed no significant differences in most histopathological parameters examined; however, apical diameter reduction was greater in the experimental group. Histological and immunohistochemical analyses showed that the canal walls of the experimental group had newly formed dentin-like tissue with dentinal tubules, while the control group had cementum-like deposits along the canal wall and apical foramina. Conclusions Autologous transplantation may be useful for regeneration of dental pulp in necrotic young permanent teeth.

Signs and symptoms of craniomandibular dysfunction in a population of Spanish children

2018 ◽  
Vol 16 (1) ◽  
pp. 24
Author(s):  
Maria Esperanza Sánchez-Sánchez
Keyword(s):  
Signs And Symptoms ◽  
Permanent Teeth ◽  
Tooth Sensitivity ◽  
Craniomandibular Dysfunction ◽  
Teeth Grinding ◽  
Specific Questionnaire ◽  
Other Hand ◽  
Opening And Closing

The craniomandibular dysfunction (CMD) is a pathology that can appear at early ages. In a sample of 36 childrenresiding in Madrid (Spain), of both sexes, with ages between 7 and 13 years, the prevalence of signs and symptomsof CMD was analyzed. For that purpose, we did a dental and muscular examination, together with temporomandibularjoints, functional and occlusal examination, and completed with a specific questionnaire. The results revealedthat 100% showed some sign or sympthom of CMD. 77,8% of the pacients presented 3 or more CMD signs.The most prevalent were painful muscle palpation (94,4%), together with sliding anteriorly (91,7%), painful jointpalpation (69,4%), wear facets in permanent teeth (41,7%) and altered opening and closing trayectory (38,9%). Onthe other hand, only 38,9% showed any CMD symptom. The most prevalent symptoms were night teeth grinding(27,8%), followed by tooth sensitivity (19,4%) and fullness in the ears (16,7%). We conclude that in our sample,25% presented mild CMD (less that 3 signs or symptoms), 58,3% presented moderate CMD (from 3 to 6 signs orsymptoms) and 16,7% showed severe CMD (more than 6 symptoms). Nevertheless, it’s important to remark thatnone of these pacients came seeking treatment for his CMD and these symptoms were refered only when beingasked. Hence the importance of a comprehensive clinic history to precociously diagnose this pathology and havethe ability to prevent its progression.

A Case of Immature Permanent Teeth with Traumas

1992 ◽  
Vol 46 (6) ◽  
pp. 848-854
Author(s):  
Akiko Morimoto ◽  
Tosiko Sakamoto ◽  
Syoji Kodama ◽  
Kyoko Nagoshi ◽  
Ryuiti Nakashima ◽  
...  
Keyword(s):  
Permanent Teeth

Resorption of multirooted temporary teeth in children with dentofacial anomalies in accordance with the orthopantomography data

2020 ◽  
Vol 20 (3) ◽  
pp. 235-241
Author(s):  
F. S. Ayupova ◽  
S. N. Alekseenko ◽  
V. Ya. Zobenko ◽  
T. V. Gayvoronskaya
Keyword(s):  
Primary Teeth ◽  
Root Resorption ◽  
Type A ◽  
Mixed Dentition ◽  
Permanent Teeth ◽  
Primary Molars ◽  
Second Primary ◽  
X Rays ◽  
Primary Molar ◽  
Posterior Teeth

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.

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