Terminologies in description of dentition and teeth
Homodont: Teeth are uniformly of similar shape in a dentition as in
Heterodont dentition:  Teeth
are regionally specialized into classes of different types as in humans and
Monophyodont dentition: The animal has a single generation of teeth
only as in walrus and seals.
Diphyodont dentition: The condition of having two generation of
teeth as in humans.
Polyphyodont dentition: Many generations of teeth as seen in many
Anodont: Absence of teeth, but they may have teeth or teeth like
structures during the course of development as in certain species of whales and
Bunodont : (Greek, meaning a mound or hill) teeth have cone-shaped
tubercles or cones; they are low height occlusocervically with well-developed
roots. An example is the posterior teeth in the pig.
Selenodont: (Greek, meaning the moon) teeth have cusps transformed
into half-moon shapes. The teeth themselves are elongated mesiodistally. The
concave side faces laterally in the upper jaw; lingually in the lower jaw. The
grinding stroke is thus from the outside inward and from the inside outward. An
example is in the cheek teeth of sheep.
Sectorial:  (Latin,  secare meaning to cut) teeth are blade-like
teeth adapted to cutting the diet into pieces and swallowing them whole. A
specialized variant in carnivores are the carnassials which consist of the last
premolar in the upper jaw and the first molar of the lower jaw.
Lophodont : (Greek,  meaning
a crest) molars are ridged teeth that have transverse ridges as in the tapir
Bilophodont : Refers to molars that have two sets of transverse
Polylophodont molars have many ridges as seen in the elephant
molar. The power stroke is where the lower molars slide forward against the
upper molars.
Brachydont (Greek, meaning a short) teeth have low crowns and
well-developed roots. This condition is seen in humans.
Hypsodont (Greek, meaning height) teeth have long crowns and short
roots as seen in the horse. It them, it is a function adaptation for continuous
wear sustained by chewing grass with a high abrasive silica content.
Haplodont (Greek, meaning a simple) teeth have simple crowns and
roots, as seen in the dolphin.

Tusks are incisors or canines of continuous growth that protrude
beyond the lips when the mouth is closed. They include the following: (1) The
incisors of the Elephant and Hippopotamus; (2) The left incisor of the Narwhal;
(3) Canines of the Wild Boar, Wart Hog and Walrus. 


1 2 15
February 28th, 2014

Know your tool – Microscope

Image distance and object distance. With respect to the principal planes of a lens, the image-to-lens and object-to-lens distances, as […]

February 28th, 2014

Definitions in Microscopy

Diffraction grating. A transparent or reflective substrate containing an array of parallel lines having the form of alternating grooves and […]

February 21st, 2014

Inking the Specimen

INKING THE SPECIMEN ·         Various Water/organic fluids insoluable inks and colored powders can be used to mark critical points on […]

February 13th, 2014

Tissue Sampling Techniques – Small Biopsies & Triaging

Tissue Sampling Techniques – Small Biopsies & Triaging Most Important Steps • Patient identification – Identification on the requisition must […]

February 6th, 2014


(Material Collected From various reliable sources- My role is just assembling facts for you. No intention of claiming this to […]

January 30th, 2014

Previous Year Question Papers of Various universities – For MDS – Oral Pathology

CONNECTIVE TISSUE STAINS 1.     Discuss the CT stains10 mks(RGUHS) 2.     Routine stains used in oral pathology-10 mks(RGUHS) 3.     Discuss stains […]

January 23rd, 2014

Previous years questions from various Indian Universities – for MDS in Oral Pathology

PULP AND PERIAPICAL INFECTIONS Chronic hyperplastic pulpitis- 10 mks Define and classify Osteomyelitis. Discuss in detail non- suppurative OM-10 mks […]

January 16th, 2014

Previous years questions from various Indian Universities – for MDS in Oral Pathology

MISCELLANEOUS IN ORAL PATHOLOGY 1.      Granulomatous infections of the oral cavity- 100 mks (MU) 2.      Oro- facial pain-10 mks 3.      […]

January 9th, 2014

Human Deciduous Mandibular Molar

January 9th, 2014

Previous years questions from various Indian Universities – for MDS in Oral Pathology

CONNECTIVE TISSUE NEOPLASMS 1.       Discuss the neoplastic lesions of bone of CT origin- 20 mks 2.      Classify nerve tissue tumours […]