[A histological and histomorphometric study of the mandibular condyle during prenatal growth of the human mandible]. 1992

R Berraquero Delgado

There is still some controversy on condylar cartilage growth capacity, whether it is similar or not to long bones growth cartilage. Recently it has been set that human tibial proximal growth decreases gradually throughout the second half of pregnancy period. The aim of this study is to determine whether changes are produced within mandibular condylar cartilage during fetal period are similar or not those that take place in growth platform. Lateral X-rays from the right half of the mandible of 19 human foetus between 18 and 41 weeks had been obtained. Total mandibular length, corpus length, ramus length and gonial angle were measured. A hystological condylar study was made, recording its thickness from sagittal sections of the central condylar area. Total mandibular length as well as corpus and ramus length progressively increased during studied period, existing high correlation between those parameters and gestational age and weight. Gonial angle decreases in studied period. Changes in condylar thickness were correlated neither with pregnancy age nor with fetal weight or X-rays mandibular parameters. These outcomes show that changes in mandibular condyle are not similar to those produced in tibial growth proximal platform and suggest condylar modifications could be more related to local factors than with general body growth mechanisms.

UI MeSH Term Description Entries
D008334 Mandible The largest and strongest bone of the FACE constituting the lower jaw. It supports the lower teeth. Mylohyoid Groove,Mylohyoid Ridge,Groove, Mylohyoid,Grooves, Mylohyoid,Mandibles,Mylohyoid Grooves,Mylohyoid Ridges,Ridge, Mylohyoid,Ridges, Mylohyoid
D008335 Mandibular Condyle The posterior process on the ramus of the mandible composed of two parts: a superior part, the articular portion, and an inferior part, the condylar neck. Condyle, Mandibular,Condyles, Mandibular,Mandibular Condyles
D008648 Mesoderm The middle germ layer of an embryo derived from three paired mesenchymal aggregates along the neural tube. Mesenchyme,Dorsal Mesoderm,Intermediate Mesoderm,Lateral Plate Mesoderm,Mesenchyma,Paraxial Mesoderm,Dorsal Mesoderms,Intermediate Mesoderms,Lateral Plate Mesoderms,Mesenchymas,Mesoderm, Dorsal,Mesoderm, Intermediate,Mesoderm, Lateral Plate,Mesoderm, Paraxial,Mesoderms, Dorsal,Mesoderms, Intermediate,Mesoderms, Lateral Plate,Mesoderms, Paraxial,Paraxial Mesoderms,Plate Mesoderm, Lateral,Plate Mesoderms, Lateral
D011859 Radiography Examination of any part of the body for diagnostic purposes by means of X-RAYS or GAMMA RAYS, recording the image on a sensitized surface (such as photographic film). Radiology, Diagnostic X-Ray,Roentgenography,X-Ray, Diagnostic,Diagnostic X-Ray,Diagnostic X-Ray Radiology,X-Ray Radiology, Diagnostic,Diagnostic X Ray,Diagnostic X Ray Radiology,Diagnostic X-Rays,Radiology, Diagnostic X Ray,X Ray Radiology, Diagnostic,X Ray, Diagnostic,X-Rays, Diagnostic
D001835 Body Weight The mass or quantity of heaviness of an individual. It is expressed by units of pounds or kilograms. Body Weights,Weight, Body,Weights, Body
D002196 Capillaries The minute vessels that connect arterioles and venules. Capillary Beds,Sinusoidal Beds,Sinusoids,Bed, Sinusoidal,Beds, Sinusoidal,Capillary,Capillary Bed,Sinusoid,Sinusoidal Bed
D002358 Cartilage, Articular A protective layer of firm, flexible cartilage over the articulating ends of bones. It provides a smooth surface for joint movement, protecting the ends of long bones from wear at points of contact. Articular Cartilage,Articular Cartilages,Cartilages, Articular
D002508 Cephalometry The measurement of the dimensions of the HEAD. Craniometry
D002680 Chin The anatomical frontal portion of the mandible, also known as the mentum, that contains the line of fusion of the two separate halves of the mandible (symphysis menti). This line of fusion divides inferiorly to enclose a triangular area called the mental protuberance. On each side, inferior to the second premolar tooth, is the mental foramen for the passage of blood vessels and a nerve. Mental Region,Mentum
D003094 Collagen A polypeptide substance comprising about one third of the total protein in mammalian organisms. It is the main constituent of SKIN; CONNECTIVE TISSUE; and the organic substance of bones (BONE AND BONES) and teeth (TOOTH). Avicon,Avitene,Collagen Felt,Collagen Fleece,Collagenfleece,Collastat,Dermodress,Microfibril Collagen Hemostat,Pangen,Zyderm,alpha-Collagen,Collagen Hemostat, Microfibril,alpha Collagen

Related Publications

R Berraquero Delgado
October 1987, Cranio : the journal of craniomandibular practice,
R Berraquero Delgado
March 1978, The Bulletin of Tokyo Medical and Dental University,
R Berraquero Delgado
January 1985, Anales de la Facultad de Odontologia,
R Berraquero Delgado
August 1974, The Bulletin of Tokyo Medical and Dental University,
R Berraquero Delgado
January 1988, Revue de stomatologie et de chirurgie maxillo-faciale,
R Berraquero Delgado
February 2001, Journal of dental research,
R Berraquero Delgado
August 2001, International journal of oral and maxillofacial surgery,
R Berraquero Delgado
May 1995, Journal of oral and maxillofacial surgery : official journal of the American Association of Oral and Maxillofacial Surgeons,
Copied contents to your clipboard!