ABSTRACT
El odontoma compuesto es el tumor odontogénico más frecuente. El caso aquí descrito pertenece a una paciente de 19 años. que presentaba molestias en la zona correspondiente al canino inferior izquierdo impactado. El descubrimiento del tumor fue casual al realizar el estudio radiográfico. Se extirpó e tumor v realizamos la extracción del canino impactado ante la imposibilidad de que erupcionase. El estudio anatomopalológico confirmó el diagnostico previo de odontoma con puesto (AU)
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Subject(s)
Adult , Female , Humans , Odontoma , Mouth Neoplasms , Odontoma/surgery , Odontoma/pathology , Cuspid/surgery , Tooth Extraction , Mouth Neoplasms/surgery , Mouth Neoplasms/pathologyABSTRACT
The objective of this study was to determine which teeth provide the most reliable data for use in age estimation. We studied 170 teeth from the anterior region (central and lateral incisors, and canines) and used an image analysis technique to analyse a number of morphometric features in thin sections of tooth. Our results showed root translucency to be the variable most clearly related to the subject's age, and the canine teeth to provide the most reliable information on this variable.
Subject(s)
Age Determination by Teeth/methods , Cuspid/anatomy & histology , Incisor/anatomy & histology , Tooth Root/anatomy & histology , Adolescent , Adult , Age Factors , Aged , Aged, 80 and over , Child , Dental Pulp Cavity/anatomy & histology , Dentin, Secondary/anatomy & histology , Female , Humans , Image Processing, Computer-Assisted , Linear Models , Male , Middle Aged , Regression AnalysisABSTRACT
The diagnostic usefulness of some morphometric parameters of teeth in age determination were studied. In the first series 173 central incisors from 13-83 year-old individuals were examined and in the second series 72 teeth from 30 individuals (aged 39 to 80 years). Root transparency and dentinal tubule diameter were the most reliable parameters on the basis of image analysis (IBAS system) of scanning electron microscopic images. These variables were used in multiple linear regression analyses which led to the exclusion of secondary dentine as it did not improve the fit and therefore did not help to explain the dependent variable. The precise measurement of the morphometric variables we used facilitates age determination, reducing the mean error reported by other authors who used subjective estimates. Our results document the limited effectiveness of these parameters in age estimation due to individual variations caused by genetic factors and chewing habits.
Subject(s)
Age Determination by Teeth/methods , Dentin, Secondary/diagnostic imaging , Adult , Aged , Aged, 80 and over , Cuspid/anatomy & histology , Dental Pulp Calcification/pathology , Dental Pulp Cavity/anatomy & histology , Dentin/ultrastructure , Humans , Image Processing, Computer-Assisted , Incisor/anatomy & histology , Linear Models , Microscopy, Electron, Scanning , Middle Aged , Reproducibility of Results , Tooth Crown/anatomy & histology , Tooth Root/ultrastructureABSTRACT
In a previous paper (M. López-Nicolás et al., Forensic Sci. Int., 45 (1990) 143-150) we obtained a model of multiple regression to estimate age using computerized image analysis (IBAS) to study teeth. This method should provide more precise measurements of the parameters involved and to test this hypothesis we have carried out a blind study using more than one tooth from the same individual in order to check the diagnostic accuracy of the method. Our results show that individual variability introduced serious errors in tooth age estimation using computerized image analysis. However the study of more than one tooth per individual improves the accuracy of age estimation. Specific cases should therefore be interpreted cautiously, as a degree of variability can be expected using the parameters defined in this method.
Subject(s)
Age Determination by Teeth/methods , Image Processing, Computer-Assisted , Tooth/anatomy & histology , Adult , Aged , Aged, 80 and over , Cuspid/anatomy & histology , Humans , Incisor/anatomy & histology , Middle Aged , OdontometryABSTRACT
In this present work the authors state the importance of a careful anamnesis in a adenopathy in the maxillofacial pediatric area. Ever though in most cases the origin is purely dental, it can often have another etiology, such as tuberculosis.
Subject(s)
Tuberculosis, Lymph Node , Tuberculosis, Oral , Child, Preschool , Dental Pulp Necrosis , Diagnosis, Differential , Female , HumansABSTRACT
The study of teeth to estimate age in a cadaver or in remains has become widely accepted in legal medicine, especially since the appearance of Gustafson's work in 1950. However, many studies published since that time have questioned the accuracy of these determinations. Computerized image analysis (IBAS) provides much more precise measurements of the parameters involved in these studies. An IBAS I (Kontron) image analysis system was used to study 19 different morphological parameters in midsagittal sections of a total of 173 upper and lower central incisors from as many live subjects. The data thus obtained provide useful information for determining the subject's age.
