The present study was planned to generate scientific baseline data
on prenatal development of teeth in goat. The mammalian dentition is classified
as heterodont dentition because the teeth develop differently in each region of
the mouth according to their use and are grouped into incisors, canines,
premolars, and molars. For the present investigation, a total of 42
representative goat fetuses were taken and they were prepared for incisor block
and hemisections of head. After preparation, they were radiographed in
dorso-ventral and latero-medial projection, respectively. The sequential
progression of development of deciduous incisors was found as Di1, Di2, Di3,
Di4. The beginning of crown formation was detected at the 12th, 13th, 14th, and
15th week for Di1, Di2, Di3 and Di4 in goat fetuses, respectively. The complete
crown formation and beginning of root formation were detected at 18th, 19th,
20th, and 21st weeks for Di1, Di2, Di3 and Di4, respectively. All deciduous
incisor teeth had roots at different stages of development at full term, but
none had fully developed. The current investigation found bilateral symmetry in
the development of the goat fetuses' deciduous incisor teeth. No radiological
evidence was found to support the development of permanent incisor teeth in the
upper and lower jaw or upper deciduous incisors. The scientific baseline data
generated from the present study on various radiographic developmental stages
of deciduous incisor teeth could be utilized as a guideline to estimate age in
goat fetuses from the 12th week to full term. The present investigation
revealed bilateral symmetry in deciduous incisor teeth development in goat
fetuses. There was no any radiographic indication for development of upper
deciduous incisors as well as permanent incisor teeth in the upper and lower
jaw.
Author(s)
Details
Joshi
N. H
Department of Veterinary Anatomy, College of Veterinary Science
and A.H., Sardarkrushinagar Dantiwada Agricultural University,
Sardarkrushinagar, 385506, India.
Patel
K. B
Department of Veterinary Anatomy, College of Veterinary Science
and A.H., Sardarkrushinagar Dantiwada Agricultural University,
Sardarkrushinagar, 385506, India.
Desai
M. C.
Department of Veterinary Anatomy, College of Veterinary Science
and A.H., Sardarkrushinagar Dantiwada Agricultural University,
Sardarkrushinagar, 385506, India.
Raval
S. H.
Department of Pathology, College of Veterinary Science and A.H.,
Sardarkrushinagar Dantiwada Agricultural University, Sardarkrushinagar, 385506,
Gujarat, India.
Parmar
R. S.
Department of Pathology, College of Veterinary Science and A.H.,
Sardarkrushinagar Dantiwada Agricultural University, Sardarkrushinagar, 385506,
Gujarat, India.
Chudasama
M. M.
Department of Veterinary Anatomy, College of Veterinary Science
and A.H., Sardarkrushinagar Dantiwada Agricultural University,
Sardarkrushinagar, 385506, India.
Please see the book here:- https://doi.org/10.9734/bpi/ibs/v8/8268E
No comments:
Post a Comment