Roles of Different Areas of Palatine Bone Denudation on Growth and Development of the Maxilla and Dental Arch

2007 ◽  
Vol 18 (2) ◽  
pp. 391-398 ◽  
Author(s):  
Tian Meng ◽  
Bing Shi ◽  
Xu Huang ◽  
Qian Zheng ◽  
Yan Wang ◽  
...  
Keyword(s):  
Growth And Development ◽  
Dental Arch ◽  
Palatine Bone

scholarly journals Clinical Evaluation of Solitary Median Maxillary Central Incisor Syndrome

2019 ◽  
Vol 2019 ◽  
pp. 1-5
Author(s):  
Malaz M. Mustafa ◽  
M. Zakirulla ◽  
Ibrahim AlShahrani ◽  
Rafi A. Togoo ◽  
Zuhair M. Alkahtani ◽  
...  
Keyword(s):  
Growth And Development ◽  
Ethnic Origin ◽  
Dental Arch ◽  
Close Monitoring ◽  
Hemifacial Microsomia ◽  
Central Incisor ◽  
Developmental Abnormalities ◽  
Maxillary Central Incisor ◽  
Live Births

Solitary median maxillary central incisor (SMMCI) is a rare dental anomaly. It is estimated to occur in 1 : 50,000 live births. The SMMCI tooth differs from the normal central incisor in that the crown form is symmetric and it develops and erupts precisely in the midline of the maxillary dental arch in both primary and permanent dentitions. The presence of SMMCI with hemifacial microsomia (HFM) is a very rare clinical condition. We report a case of SMMCI in a female of African ethnic origin, who presented with SMMCI in permanent dentition with mild nasal stenosis. An early diagnosis of SMMCI is important, since it may be a sign for other severe congenital or developmental abnormalities. Therefore, systematic follow-up and close monitoring of the growth and development of SMMCI patients are crucial.

scholarly journals Evaluation of Growth and Development of Adolescents’ Dental Arch Asymmetry with Normal Occlusion Using Three-Dimensional Digital Models

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Dapeng Yang ◽  
Shiyu Ding ◽  
Peipei Li
Keyword(s):  
Junior High School ◽  
Growth And Development ◽  
Three Dimensional ◽  
Permanent Dentition ◽  
Reference Plane ◽  
Dental Arch ◽  
Central Incisor ◽  
Lower Canine ◽  
Normal Occlusion ◽  
Dental Cast

Objective. The purpose of this study was to observe the dental arch asymmetry in 12-year-olds with normal occlusion during the early permanent dentition stage. Methods. Ninety-two 12-year-old students (46 males and 46 females) who had normal occlusion during early permanent dentition were selected from a junior high school in Tangshan, China. Once per year for three consecutive years, a dental cast was obtained from each subject, and the cast was scanned with a 3D digital scanner (R700 3D). The median palatal plane (MPP) and transverse palatal plane (TPP) were used as the reference plane for the transverse and anteroposterior measurements, respectively. Results. Most of the dental arch asymmetry indicators decreased with age, but these differences were not statistically significant. The values of the midincisal edge of the upper central incisors (U1), midincisal edge of the upper lateral incisors (U2), upper canine cusp tip (U3), upper first premolar buccal cusp tip (U4), upper second premolar buccal cusp tip (U5), upper first molar mesiobuccal cusp tip (U6MB), and upper first molar distobuccal cusp tip (U6DB) to the TPP were 0.019 mm, 0.279 mm, 0.017 mm, 0.016 mm, 0.016 mm, 0.027 mm, and 0.200 mm, respectively; these values were larger in males than in females ( P < 0.05 ). The values of 2–5, 6MB, and 6DB-TPP were 0.154 mm, 0.102 mm, 0.119 mm, 0.259 mm, 0.206 mm, and 0.123 mm, respectively, larger in the mandibular than in the maxillary dental arch ( P < 0.05 ). The values of the midincisal edge of the lower central incisors (L1), midincisal edge of the lower lateral incisors (L2), lower canine cusp tip (L3), lower first premolar buccal cusp tip (L4), lower second premolar buccal cusp tip (L5), lower first molar mesiobuccal cusp tip (L6MB), and lower first molar distobuccal cusp tip (L6DB) to the MPP were 0.399 mm, 0.197 mm, 0.258 mm, 0.248 mm, 0.214 mm, 0.575 mm, and 0.531 mm, respectively, larger than L1-5, L6MB, and L6DB-TPP ( P < 0.05 ). Conclusion. The asymmetry of the dental arch in 12-to-15-year-olds with normal occlusion did not change significantly with age. The anteroposterior asymmetry of the maxillary dental arch is larger in males than in females. With the exception of the central incisor, the anteroposterior asymmetry of the mandibular dental arch is larger than that of the maxillary dental arch. The transverse asymmetry of the mandibular dental arch is larger than the anteroposterior asymmetry.

scholarly journals Effects of different types of palatal lateral excisions on growth and development of maxilla and dental arch

2008 ◽  
Vol 9 (8) ◽  
pp. 638-648 ◽  
Author(s):  
Jun Wu ◽  
Qian Zheng ◽  
Bing Shi ◽  
Tian Meng ◽  
Yan Wang ◽  
...  
Keyword(s):  
Growth And Development ◽  
Dental Arch ◽  
Different Types

scholarly journals Effects of early and late cheiloplasty on anterior part of maxillary dental arch development in infants with unilateral complete cleft lip and palate

2015 ◽  
Author(s):  
Silvia V Valentová-Strenáčiková ◽  
Radovan Malina
Keyword(s):  
Growth And Development ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Anterior Part ◽  
Anterior Segment ◽  
Surgical Reconstruction ◽  
Dental Arch ◽  
Lip Reconstruction ◽  
The Third ◽  
The Impact

Objectives. The objective of this study is to compare the impact of early and late reconstruction of complete unilateral cleft lip and palate on the growth and development of the front of the dentoalveolar arch. Methods. This study was carried out in the years 2012 - 2015 at the Clinic of Plastic, Reconstructive and Aesthetic Surgery in Banska Bystrica. Infants with unilateral complete cleft lip and palate were divided into 2 groups according to the timing of lip reconstruction. Group A consisted of infants with early lip reconstruction - realised in the first 14 days of life. Group B consisted of infants with later lip reconstruction - realised in the third month of age. Maxillary dental casts were obtained for each child in four periods – in the first 14 days of life, in the third month, in the sixth month and in the age of one year. These were followed by the identification, measurement and evaluation of anthropometric parameters. Results. Significant differences were occurred after the reconstruction of the lips in linear and angle measurements between infants in the A and B groups. Conclusion. The early surgical reconstruction of the lips in the first 14 days of life has a positive effect on the growth and development of the anterior segment of the dentoalveolar arch. Early lip reconstruction forms a continuous pressure on the frontal segment, resulting in the earlier remedy of anatomical properties and creates appropriate conditions for the best development of this area.

scholarly journals Post-surgical rehabilitation of children with tumor lesions of the maxillofacial region

2021 ◽  
Vol 70 (2) ◽  
Author(s):  
Silvia Railean ◽  
◽  
Cristina Postaru ◽  
Gheorghe Granciuc ◽  
Marcel Volovei ◽  
...  
Keyword(s):  
Growth And Development ◽  
Benign Tumor ◽  
Permanent Teeth ◽  
Benign Tumors ◽  
Dental Arch ◽  
Surgical Removal ◽  
Tumor Removal ◽  
Maxillofacial Region ◽  
Current Topic ◽  
Diagnostic Technologies

Post-surgical rehabilitation of children with benign tumor injuries of the jaws. Introduction. Tumors in children have a specific and constantly current topic. With the advent of new diagnostic technologies, there is an increasing incidence of tumors in children. The peculiarities of the growth and development of the child from newborn to adolescent highlight new and new problems of morphofunctional and psycho-emotional rehabilitation, both immediately after treatment and at a distance. The purpose of the study was to find out the problems that appear in children after the surgical removal of benign tumors from the jaw region. Results. During 2020 year, 66 children with benign tumors of the jaws were found. The children underwent surgical treatment to remove the tumors. It has been found that tumors located in the mandible are two times more common than those located in the upper jaw. The period of morphofunctional rehabilitation of the child after the removal of the tumor depending on the growth of the tumor and the peculiarities of the dentomaxillary system, we have three categories of children. Children with tumor removal in the block. Children with tumor removal by curettage. Children with palliative tumor removal. Rehabilitation methods include restoring the dental arch with removable applines. In group two, remodeling the growth of the jaws with the positioning of the permanent teeth. Group three includes tooth repositioning, jaw remodeling, and tooth eruption stimulation. Conclusion. Tumors with localization in the jaws during the growth and development of the child require complex rehabilitation, immediately after treatment and at a distance, with a personalized character depending on the postoperative defects and the age of the child.

scholarly journals Evaluation of Growth and Development of Late Mixed Dentition Upper Dental Arch with Normal Occlusion Using 3-Dimensional Digital Models

2019 ◽  
Vol 2019 ◽  
pp. 1-8
Author(s):  
Dapeng Yang ◽  
Shuran Liang ◽  
Ke Zhang ◽  
Weimin Gao ◽  
Yuxing Bai
Keyword(s):  
Growth And Development ◽  
Three Dimensional ◽  
Mixed Dentition ◽  
Dental Arch ◽  
3 Dimensional ◽  
Normal Occlusion ◽  
Dimensional Measurements ◽  
Dimensional Growth ◽  
Dental Arch Length ◽  
Beijing China

Objective. The purpose of this study was to observe the three-dimensional growth and development of the maxillary arch in 10-year-olds with normal occlusion during the late mixed dentition stage. Methods. Forty-four 10-year-old students (22 males and 22 females) who had normal occlusion during late mixed dentition were selected from an elementary school in Beijing, China. Once per year for three consecutive years, a dental cast was obtained from each subject, and the cast was scanned with a 3D digital scanner (R700 3D). The three-dimensional measurements of the maxillary dental arch and the inclination of the bilateral maxillary first molars were obtained from the digital model. Results. The upper anterior arch length (UAAL), upper total arch length (UTAL), upper inter primary or permanent canine width (UICW), upper intermolar width (UIMW), and upper dental arch length (UDAL) increased by 0.959 mm, 0.583 mm, 0.955 mm, 1.462 mm, and 2.46 mm, respectively, over the two years (P<0.001). UR6BL and UL6BL decreased by 4.416° and 7.133°, respectively, over the two years (P<0.001). The values of the UICW and UIMW were 1.67 mm and 1.86 mm, respectively, larger in males than in females at 12 years old (P<0.01). The change in the UTAL was 0.431 mm greater in males than in females over the 2 years (P<0.05). Conclusion. The UAAL, UTAL, UICW, UIMW, and UDAL in 10- to 12-year-olds with normal occlusion increased with age. The buccolingual inclination of the bilateral maxillary first molars inclined to the palatal side with age. The UICW and UIMW were larger in males than in females at 12 years old. The male UTAL increased more than the female UTAL over the 2 years.

scholarly journals The effect of estrogen on craniofacial dimensions: a systematic review

2019 ◽  
Vol 7 (1) ◽  
Author(s):  
Marjorie Ayumi Omori ◽  
Mirian Aiko Nakane Matsumoto ◽  
Raquel Assed Bezerra Segato ◽  
Léa Assed Bezerra da Silva ◽  
Paulo Nelson Filho ◽  
...  
Keyword(s):  
Systematic Review ◽  
Animal Models ◽  
Growth And Development ◽  
Female Rats ◽  
Current Evidence ◽  
Dental Arch ◽  
Computer Search ◽  
Craniofacial Growth ◽  
Maxilla And Mandible

Sex hormones have an effect on bone metabolism. However, it remains unclear how estrogen hormone affects mandible and maxilla growth and development. The aim of this study was to perform a systematic review to evaluate if estrogen is associated with developmental alterations in the maxilla/mandible phenotype. Material and methods: A computer search of the literature was performed using: Pubmed Medline (1966 – August 2018), Google Scholar and manual searching. A combination of the terms ‘estrogens', ‘mandible’, ‘dental arch’, ‘maxilla’, ‘craniofacial’, ‘growth’ and ‘development’ was used. Studies that used animal models to evaluate the role of estrogen during growth and development on the dimensions of the maxilla and/or mandible were included. Results: 5 studies were selected to compose this systematic review. One study used zebrafish as a model. Two studies used female mice and 2 studies used female rats as a model. Two studies treated the animals with estrogen. Four studies demonstrated that estrogen has an effect on mandible dimension and 2 studies demonstrated that estrogen has an effect on maxilla. One study did find an association between estrogen deficiency and mandible/maxilla dimensions Conclusion: The current evidence suggested that both, increased and decreased levels of estrogen, have an effect on the maxilla and mandible dimensions.

scholarly journals Effects of early and late cheiloplasty on anterior part of maxillary dental arch development in infants with unilateral complete cleft lip and palate

2015 ◽  
Author(s):  
Silvia V Valentová-Strenáčiková ◽  
Radovan Malina
Keyword(s):  
Growth And Development ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Anterior Part ◽  
Anterior Segment ◽  
Surgical Reconstruction ◽  
Dental Arch ◽  
Lip Reconstruction ◽  
The Third ◽  
The Impact

Objectives. The objective of this study is to compare the impact of early and late reconstruction of complete unilateral cleft lip and palate on the growth and development of the front of the dentoalveolar arch. Methods. This study was carried out in the years 2012 - 2015 at the Clinic of Plastic, Reconstructive and Aesthetic Surgery in Banska Bystrica. Infants with unilateral complete cleft lip and palate were divided into 2 groups according to the timing of lip reconstruction. Group A consisted of infants with early lip reconstruction - realised in the first 14 days of life. Group B consisted of infants with later lip reconstruction - realised in the third month of age. Maxillary dental casts were obtained for each child in four periods – in the first 14 days of life, in the third month, in the sixth month and in the age of one year. These were followed by the identification, measurement and evaluation of anthropometric parameters. Results. Significant differences were occurred after the reconstruction of the lips in linear and angle measurements between infants in the A and B groups. Conclusion. The early surgical reconstruction of the lips in the first 14 days of life has a positive effect on the growth and development of the anterior segment of the dentoalveolar arch. Early lip reconstruction forms a continuous pressure on the frontal segment, resulting in the earlier remedy of anatomical properties and creates appropriate conditions for the best development of this area.

scholarly journals Effects of early and late cheiloplasty on anterior part of maxillary dental arch development in infants with unilateral complete cleft lip and palate

PeerJ ◽  
2016 ◽  
Vol 4 ◽  
pp. e1620 ◽  
Author(s):  
Silvia Valentová-Strenáčiková ◽  
Radovan Malina
Keyword(s):  
Growth And Development ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Anterior Part ◽  
Anterior Segment ◽  
Surgical Reconstruction ◽  
Dental Arch ◽  
Lip Reconstruction ◽  
The Third ◽  
The Impact

Objectives.The objective of this study is to compare the impact of early and late reconstruction of complete unilateral cleft lip and palate on the growth and development of the front of the dentoalveolar arch.Methods.This study was carried out in the years 2012–2015 at the Clinic of Plastic, Reconstructive and Aesthetic Surgery in Banska Bystrica. Infants with unilateral complete cleft lip and palate were divided into 2 groups according to the timing of lip reconstruction. Group A consisted of infants with early lip reconstruction–realised in the first 14 days of life. Group B consisted of infants with later lip reconstruction–realised in the third month of age. Maxillary dental casts were obtained for each child in four periods–in the first 14 days of life, in the third month, in the sixth month and in the age of one year. These were followed by the identification, measurement and evaluation of anthropometric parameters.Results.Significant differences were occurred after the reconstruction of the lips in linear and angle measurements between infants in the A and B groups.Conclusion.The early surgical reconstruction of the lips in the first 14 days of life has a positive effect on the growth and development of the anterior segment of the dentoalveolar arch. Early lip reconstruction forms a continuous pressure on the frontal segment, resulting in the earlier remedy of anatomical properties and creates appropriate conditions for the best development of this area.

An ultrastructural study of vegetative incompatibility in plants

1978 ◽  
Vol 36 (2) ◽  
pp. 436-437
Author(s):  
Randy Moore
Keyword(s):  
Ultrastructural Study ◽  
Cell Walls ◽  
Growth And Development ◽  
Solanum Pennellii ◽  
Initial Product ◽  
Basic Aspect ◽  
Tissue Interactions ◽  
Graft Interface ◽  
Antigen Antibody ◽  
Standard Fixation

Cell and tissue interactions are a basic aspect of eukaryotic growth and development. While cell-to-cell interactions involving recognition and incompatibility have been studied extensively in animals, there is no known antigen-antibody reaction in plants and the recognition mechanisms operating in plant grafts have been virtually neglected.An ultrastructural study of the Sedum telephoides/Solanum pennellii graft was undertaken to define possible mechanisms of plant graft incompatibility. Grafts were surgically dissected from greenhouse grown plants at various times over 1-4 weeks and prepared for EM employing variations in the standard fixation and embedding procedure. Stock and scion adhere within 6 days after grafting. Following progressive cell senescence in both Sedum and Solanum, the graft interface appears as a band of 8-11 crushed cells after 2 weeks (Fig. 1, I). Trapped between the buckled cell walls are densely staining cytoplasmic remnants and residual starch grains, an initial product of wound reactions in plants.

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