scholarly journals Imperfecta Dentinogenesis: a case report

2017 ◽  
Vol 15 (2) ◽  
Author(s):  
Patricia Trejos ◽  
Vanessa Hernando ◽  
Claudia De León
Keyword(s):  
Case Report ◽  
Clinical Characteristics ◽  
Type I ◽  
Type Ii ◽  
Dentinogenesis Imperfecta ◽  
Genetic Syndromes ◽  
Restorative Treatment ◽  
Dental Crowns ◽  
The Family ◽  
Severe Destruction

Summary: Introduction: Dentinogenesis imperfecta (DI) is an inherited dental diaseasein which dental crowns are affected. DI originates by defects on the histo-differenciation stage ofodontogenesis, constituting a localized mesodermal dysplasia characterized by an expressedalteration of dentin proteins. There are three types of dentinogenesis imperfecta: Type I(associated with osteogenesis imperfecta OI), type II (no associated with OI), and type III(Brandywine’s). Objectives: To determine the type of dentinogenesis imprefecta, the family historyand clinical characteristics of a patient within extensive coronal destruction, to establish aprecise diagnosis and a treatment to recover masticatory function. Case Report: A 3-year-old malechild was referred to the clinic with dental hypersensitivity and pain during mastication. Hepresented generalized and extensive crown destructions and discoloration of erupted teeth,abscesses, attrition and loss of vertical dimension. Radiographs showed obliterated pulp chambers,marked cervical constriction and short roots. After clinical and radiographic analysis, familyhistory and consultation with a Geneticist, a relation with OI was not established. In contrast, adiagnosis of dentinogenesis imperfecta type II was confirmed. DE type II is an autosomyc dominanttrait, without gender predilection. Restorative treatment involved stainless steel crowns, requiredextractions, space maintainers and removable partial dentures placement. Conclusion: Early diagnosisand treatment of DI is recommended because the severe destruction of primary dentition that mayaffect child chewing and nutrition. Consultation wit a Geneticist in DI cases is reccomended todiscard any association with OI or other genetic syndromes. Key words: Dentinogenesis imperfecta.Odontogenesis imperfecta. Opalescent dentin. Hereditary opalescent dentin.

scholarly journals Hereditary Opalescent Dentin: A Report of Two Cases

2010 ◽  
Vol 11 (4) ◽  
pp. 49-55
Author(s):  
Siddharth Gupta ◽  
Rahul R. Bhowate ◽  
Ashok Bhati
Keyword(s):  
Osteogenesis Imperfecta ◽  
Autosomal Dominant ◽  
Type I ◽  
Type Ii ◽  
Dentinogenesis Imperfecta ◽  
Dominant Trait ◽  
Autosomal Dominant Trait ◽  
Radiographic Findings ◽  
The Family ◽  
Separate Clinical Entity

Abstract Aim The aim of this case report is to present the clinical and radiographic findings of hereditary opalescent dentin to facilitate an early diagnosis. Background Hereditary opalescent dentin (or dentinogenesis imperfecta) may manifest itself in three variations: i.e., Shields type I, Shields type II, and Shields type III. Dentinogenesis imperfecta occurs as an autosomal dominant trait with variable expressivity, either in presence with osteogenesis imperfecta or as a separate clinical entity in persons who have none of the features of osteogenesis imperfecta. Case Descriptions A seven-year old boy and his mother were both diagnosed with hereditary opalescent dentin. A review of the family dental history revealed that this condition affected not only the child's mother but his maternal grandfather and great grandfather. Both the son and the mother exhibited the same clinical and radiologic features as those reported previously with no evidence of osteogenesis imperfecta. Summary Being an autosomal disease, hereditary opalescent dentin runs in the family and can affect both the deciduous and permanent dentitions as a dominant trait. Clinical Significance Once a patient is diagnosed with hereditary opalescent dentin, other family members should be evaluated given the condition is hereditary. Citation Gupta S, Bhowate RR, Bhati A. Hereditary Opalescent Dentin: A Report of Two Cases. J Contemp Dent Pract [Internet]. 2010 July; 11(4):049-055. Available from: http://www. thejcdp.com/journal/view/volume11-issue4-gupta

scholarly journals Abernethy Malformation Type II and Concurrent Nodular Hyperplasia in a Rare Female Case

2018 ◽  
Vol 2018 ◽  
pp. 1-4
Author(s):  
Zhen Kang ◽  
Xiangde Min ◽  
Liang Wang
Keyword(s):  
Differential Diagnosis ◽  
Case Report ◽  
Type I ◽  
Type Ii ◽  
Malignant Tumours ◽  
Abernethy Malformation ◽  
Vascular Abnormality ◽  
Female Case ◽  
Nodular Hyperplasia ◽  
The Right

Background. Abernethy malformation is a rare splanchnic vascular abnormality characterizing extrahepatic abnormal shunts that is classified into types I and II. Abernethy malformation type I has a female predilection and is associated with a variety of concurrent hepatic benign or malignant tumours while type II with concurrent tumours is very rare in females. Case Report. We report a rare female case of Abernethy malformation type II with concurrent occupying lesion in the right liver, which was successfully transplanted; the occupying lesion was pathologically proven to be nodular hyperplasia. Conclusion. This case might provide further knowledge regarding Abernethy malformation. On imaging, the anatomy of portal vein should be carefully investigated to categorize Abernethy malformation, and a wide variety of differential diagnosis of concurrent occupying lesions should be taken into account.

Dentinogenesis Imperfecta type II: A case report

2014 ◽  
Vol 9 (2) ◽  
pp. 73-78
Author(s):  
P Moini ◽  
M Afsharianzadeh ◽  
E Abdoli Tafti
Keyword(s):  
Case Report ◽  
Type Ii ◽  
Dentinogenesis Imperfecta

scholarly journals Dentinogenesis imperfecta type II

2020 ◽  
Author(s):  
Heloisa Aparecida Orsini Vieira ◽  
Aldevina Campos de Freitas ◽  
Regina Maura Fernandes ◽  
Daniele Lucca Longo ◽  
Raquel Assed Bezerra da Silva ◽  
...  
Keyword(s):  
Dental Treatment ◽  
Well Being ◽  
Deciduous Teeth ◽  
Clinical Aspects ◽  
Type I ◽  
Osteogenesis Imperfecta Type ◽  
Type Ii ◽  
Dentinogenesis Imperfecta ◽  
Posterior Teeth ◽  
Anterior Teeth

Dentinogenesis imperfecta (DI) is a hereditary developmental disorder of dentin formation that can occur associated with osteogenesis imperfecta (type I), isolated (type II), or in a specific isolated resident group of Brandywine, in southern Maryland (type III). This work aims at reporting a clinical case of DI type II in childhood with a 34-year follow up. The child at issue was taken to the dental health service at a very young age, which favored an appropriate treatment, avoiding complications, and portending a favorable long-term prognosis, besides safeguarding the patient physical and mental well-being. The clinical aspects of this condition are teeth with short crowns and gray-brown coloration, and an altered consistency of affected dental elements. Radiographically, the teeth present bulbous crowns, cervical constriction, thin roots, and early obliteration of the root canal and pulp chambers due to excessive dentin production. Rehabilitation treatment included the use of stainless-steel crowns for reconstructing deciduous molars and composite resin restorations on the anterior deciduous teeth. As for permanent dentition, it consisted of aesthetic-functional rehabilitation using metal crowns on the first molars and ceramic crowns and facets on the anterior teeth. Endodontic, prosthetic and restorative treatment was performed on other posterior teeth. Preventive measures were instituted. DI may cause serious changes in dentin structure, affecting function and aesthetics in both dentitions. The sooner it is administered, the more promising the multidisciplinary dental treatment will be in promoting health and minimizing damage to affected individuals.

scholarly journals A case report of achondrogenesis type II (Langer-Saldino achondrogenesis)

2021 ◽  
Vol 52 (1) ◽  
Author(s):  
Saurabh Maheshwari ◽  
Dilip Ingole ◽  
Samar Chatterjee ◽  
Uddandam Rajesh ◽  
Varun Anand
Keyword(s):  
Case Report ◽  
Autosomal Dominant ◽  
Antenatal Diagnosis ◽  
Type Ii Collagen ◽  
Type I ◽  
Type Ii ◽  
Rare Entity ◽  
Case Presentation ◽  
Structural Mutations ◽  
Achondrogenesis Type

Abstract Background Achondrogenesis type II is a rare autosomal dominant skeletal dysplasia with a frequency of ~0.2 per 100,000 births. It is one of the lethal short-limbed dwarfisms associated with structural mutations in type II collagen and is also known as Langer-Saldino achondrogenesis. It is characterized by severe micromelia (shortening of entire limb), narrow chest, and prominent abdomen. It shares the striking feature of partial or complete vertebral body demineralization with achondrogenesis type I. Case presentation We present a case with antenatal diagnosis of this rare entity which was confirmed by post-termination radiographs of abortus. Conclusion The imaging plays a cardinal role in the diagnosis of this condition. This case represents only the 4th case of this rare entity from India.

scholarly journals Study of enamel and dentin in primary teeth with dentinogenesis imperfecta type I: A case report

2019 ◽  
Vol 2 (1) ◽  
Author(s):  
Yoko Kamasaki ◽  
Keigo Imamura ◽  
Haruka Nishimata ◽  
Miyuki Nishiguchi ◽  
Taku Fujiwara
Keyword(s):  
Case Report ◽  
Primary Teeth ◽  
Type I ◽  
Dentinogenesis Imperfecta

Molar Incisor Hypomineralization: Etiology, Clinical Aspects, and a Restorative Treatment Case Report

2020 ◽  
Vol 45 (4) ◽  
pp. 343-351
Author(s):  
D Sundfeld ◽  
LMS da Silva ◽  
OJ Kluppel ◽  
GC Santin ◽  
RCG de Oliveira ◽  
...  
Keyword(s):  
Case Report ◽  
Clinical Characteristics ◽  
Clinical Case ◽  
Resin Composite ◽  
Dental Materials ◽  
Clinical Aspects ◽  
Adhesive Systems ◽  
Restorative Treatment ◽  
Molar Incisor Hypomineralization ◽  
Functional Problems

Clinical Relevance Total-etch adhesive systems and resin composite are clinically viable dental materials for esthetic restorations in teeth presenting white/yellow/brown hypomineralization stains. SUMMARY Molar-incisor hypomineralization (MIH) is a condition that negatively affects enamel and dentin, especially the first molars and permanent incisors, causing esthetic and functional problems. The present clinical case report presents and discusses the etiology and clinical characteristics of MIH and describes a restorative protocol for MIH-affected teeth.

Earthquake mechanism determination by S-wave data

1964 ◽  
Vol 54 (2) ◽  
pp. 457-474
Author(s):  
Anne E. Stevens
Keyword(s):  
Focal Mechanisms ◽  
Type I ◽  
Type Ii ◽  
S Wave ◽  
Force System ◽  
The Earth ◽  
The Family ◽  
Force Systems ◽  
Generalized Force ◽  
Earthquake Mechanism

ABSTRACT The nature of force systems at the foci of earthquakes can be studied by analyzing initial longitudinal (P) and transverse (S) displacements produced by them on the surface of the earth. The force system described in this paper results from a superposition of three mutually orthogonal double forces which act at a point focus. A family of equations is derived which depends only on S polarization angles and not on initial P displacements to determine the orientation of this generalized force system. An IBM 1620 computer has been programmed to solve the family of equations for two particular focal mechanisms—the single couple (Honda's Type I) and the double dipole (Honda's Type II). Two possible force systems are thus calculated for each earthquake using only S angles. The appropriate mechanism for each earthquake is selected by comparing the distribution of initial P displacements actually recorded, with that predicted from the solutions of the mechanism equations making use of S data. Computer solutions are presented for 32 earthquakes for which data are available in the literature. The orientation of the force system for each earthquake calculated from S data alone is in general agreement with that determined from P data.

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