Query from a Reader

Dentinal fluid filling the dentinal tubules in human tooth is basically-
a. pulpal exudate
b. odontoplastic fluid
c. transudate of plasma
d. bacterial exudate

Ans: Is a Odontoblastic fluid - a modified version of transudate. 

Q - neural tissue growth completed by
1) 6-7 yr
2) 10-12yr
3) 15-17 yr
4)18 yr

at the max by 10 to 12 years. Especially in CNS. PNS may take a little longer

Q- pH remain constant for period of time after consuming sucrose
1)120 min
2)30 min
3)60 min
4) 20 min

This is tricky. Unless the system - blood, sugar, plaque is mentioned, answer may be incorrect. 

Q- most common malignant bone tumor in children
1)osteosarcoma
2) Ewing sarcoma

Osteosarcoma - world wide 

Q- function of 20% koh for candida albicans staing
1) it stain hyphe
2) it dissolved epithelium background
(Main function) pls tell ....clerify ?

KOH Dissolves background material like debris including shed cells

Q- fusion of two palate shelves start
1) 6 week
2)10. Week
3) 8 week
4) 12 week

by 6th week process is initiated, 

Q- proprioceptive receptor present in dental pulp ?
1) few receptor present
2) not present at all
3) present 

The free nerve endings in pulp, as such are devoid of receptors. Hence, in the pulp, no stimuli- hot, cold or any such stimuli are being interpreted as pain as pain receptors (nociceptors) are only present and possibly few mechanorecptors are only present. Hence answer is not present at all...

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Reaching Higher....

The Experience Documented

ORIGINAL ARTICLE

Year : 2014  |  Volume : 6  |  Issue : 1  |  Page : 46-52

Use of blog as a supplementary study material resource in dentistry: An Indian experience

Thavarajah Rooban, Arunachalam Mohandoss Anusa
Marundeeshwara Oral Pathology Services and Analytics, Tiruvanmiyur, Chennai, Tamil Nadu, India

Date of Web Publication

15-May-2014

Correspondence Address:
Thavarajah Rooban
Marundeeshwara Oral Pathology Services and Analytics, CS4, Bay Breeze Duraisamy Apartments, 119, East Coast Road, Tiruvanmiyur, Chennai - 600 041, Tamil Nadu
India

DOI: 10.4103/0975-8844.132586

Abstract

Objective: Social networking sites (SNS) are emerging as an alternate teaching resource. The reach and access characteristics of SNS for a noninstitutional, academic blog in an Indian setting has not been documented and this manuscript aim to address this lacunae.Materials and Methods: A blog for oral histology, an integral basic dental subject and its Facebook promotional page was created. The access characteristics were observed using Google analytics. The Facebook promotional pages of the blog access characteristics are presented. Results: A total of 582 people visited the blog during the study period. Majority of them used Google Chrome from desktop/laptop to access the blog. There were 2723 page visits in all. Visitors from 36 countries and 99 cities across the globe accessed the blog. In all through Facebook, the promotional page reached 36,543 people. The total number of people engaged through Facebook promotion page was 10,757. Conclusion: Access characteristics of the noninstitutional, academic blog have been described for the first time in dentistry. The lessons learnt through this exercise would be helpful in designing e-mentoring courses as well promotional pages of such events in the future. The necessity of making the mentors and students to adapt to e-learning and digital learning resources before drawing such programs is highlighted.

Keywords: E-learning and Facebook, Google, Indian blog, oral histology and tooth morphology, oral histology dental blog

Read Fully at http://www.jofs.in/text.asp?2014/6/1/46/132586

Will be back soon: Stay tuned with me in Oral Path Blog......

Human Deciduous Mandibular Molar

Over All

The muscle involved in incisor clenching is the	Lateral pterygoid
The deciduous teeth erupt generally in a	Anterior - posterior sequence
The most common permanent teeth eruption in maxilla is	(6-1)-2-4-3-5-7-8
The difference between mesiodistal diameter width between premolars and deciduous molars is referred as	Leeway space
Curve of Spee is in a	Saggital plane
In a normal dentition, teeth are placed __________ degrees to the horizontal plane	15
Balanced occlusion is given by	Thielemann’s formula. Explanation  Balanced occlusion is ( condylar guidance*incisial guidance)/ ( curve of Spee* cusp height* plane of occlusion)
Mesiodistal inclination of the teeth is lowest with	Mandibular canine. The inclination is 0 degrees and maximum inclination is seen with maxillary canine and about 17 degrees. Similarly the minimum faciolingual inclination is about 5 degrees with maxillary first premolar and 28 degrees in maxillary central incisors.
The total number of possible occlusal contacts are	198
The process of swallowing requires a coordination of at least	20 muscles
The presence of overjet in molars prevents	Cheek biting
The supporting cusps are	Lingual cusp of maxilla and buccal cusp of mandible teeth
Multiple working side contacts are seen as a part of	Group function
The areas of contact that a supporting cusp makes with opposing teeth is	Centric stop
A phasic jaw-closing reflex is often evoked by a tap to __________ and denotes _____________.	Chin; pathology. Tonic type is normal
The muscle involved in incisor clenching is the	Lateral pterygoid
The deciduous teeth erupt generally in a	Anterior - posterior sequence

Oral Anatomy

Masseter is covered by	Platysma; Risorius; Parotid gland
Principal postioner of mandible during elevation is the	Temporalis
The fan shaped muscles of mastication is the	Temporalis
The antagonist muscle to masseter while retruding jaw is the	Posterior temporalis. The anterior pterygoid is synergistic with masseter while clenching.
The facial muscle(s) active during opening of jaw is(are)	Digastric group of muscles; Mylohyoid and geniohyoid; Lateral pterygoid
When the jaw is opened against resistance the	Temporalis remains silent
The antagonist muscle of elevator muscles is the	Digastric group of muscles; Mylohyoid and geniohyoid; Suprahyoid muscles
With mandible is retruded with mouth closed, the muscle involved are	Posterior fibers of temporalis; Suprahyoid fibers; Infrahyoid fibers
The duration of each chewing cycle is between	0.6 – 1 second
The chewing forces reaches a maximum with	Centric occlusion

I wish you a Happy & Prosperous NEW YEAR 2014

Oral Anatomy

The facial muscle contraction is monitored by receptors in	Tendons (golgi tendon organs); Muscles (muscle spindles); Other receptors( skin, joint)
The fibers that are capable of rapid contraction and high tension but fatigue rapidly is the	Type I or phasic fibers. The type II or tonic functioning fibers handle lower contraction tension and is resistant to fatigue.
The lateral pterygoid muscles function to stabilize the tempromandibular joint and is made predominantly of	Type II or Tonic fibers
The path of opening and closing of the condyle without involving the translation of condyle is the	Centric relation
In natural dentition	Centric occlusion is anterior to centric relation by 1 millimeters
The centric relation is	Tooth determined position. The condyle in the articular fossa determines the centric relation
Basic movements of condyle include(s)	Hinge movement; Gliding movement; Translation
In lateral excursion of mandible, the condyle appears to rotate with a slight lateral shift referred as	Bennett movement
The maximum lateral shift is	10-12 millimeters. Protrusive movement is 8 to 11 millimeters and retrusive movement is 1 millimeter.
The superior head of lateral pterygoid muscle functions to	Close jaw. The inferior head functions to open jaw

Oral Anatomy

The major arterial supply to the jaw is via the	Internal maxillary artery. The internal maxillary artery is a branch of external carotid artery
The internal alveolar artery branches from internal maxillary artery just	Medial to ramus of mandible
The gasserian ganglion is at the	Petrous part of temporal bone
The parasympathetic ganglion associated with maxillary nerve is the	Pterygopalatine ganglion
The mylohyoid nerve branch is associated with	Sphenomandibular ligament
The middle and anterior palatine branch of maxillary nerve enters the palate through the	Minor palatine foramen. The posterior palatine branches pass through the major palatine foramen.
The long axes of the condyloid process if prolonged would meet at a point anterior to foramen magnum at an angle of	135 degrees
The tempromandibular ligament is the external portion of the	Capsular ligament
The accessory fibers of the stylomandibular ligament is the	Stylomandibular ligament
The suspensory ligaments of the tempromandibular joint are the	Tempromandibular and sphenomandibular ligaments

Oral Anatomy

The maxillary nerve leaves the cranium through the	Foramen rotandum
Mandibular nerve passes through	Foramen ovale
Facial nerve leaves cranium through	Stylomastoid foramen
The ganglion associated with maxillary nerve is the	Sphenopalatine ganglion
The ganglion associated with ophthalmic nerve is	Ciliary ganglion
The ganglion associated with mandibular nerve is	Submandibular ganglion and Otic ganglion
The nasociliary nerve comes out through the	Superior orbital fissure
The sensory root and motor root of mandibular nerve unite	After leaving foramen ovale
The motor roots of mandibular division of the fifth cranial nerve are derived from the motor cells located at the	Medulla oblongata
The greater petrosal nerve is associated with	Sphenopalatine ganglion

Oral Anatomy

The sensory root of the fifth cranial nerve enter the brain stem through the	Pons
The semilunar ganaglion is located in the	Meckel’s cavity
The sensory root of the fifth cranial nerve is made up of	Unipolar neurons
The ascending fibers of the central branches of the sensory root of the fifth cranial nerve terminate in	Upper sensory nucleus
The ascending fibers of the central branches of the sensory root of the fifth cranial nerve convey	Tactile discrimination; Passive movement; Sense of position
The main nucleus of the fifth cranial nerve is with the	Dorsal trigeminothalamic tract
The bulbospinal nucleus is _______ and associated with __________________.	Ventral trigeminothalamic tract and pain, temperature
The mesencephalic nucleus convey the impulses from	Tempromandibular joint, palate, Periodontal membrane and teeth, Stretch receptor from muscle fibers. The nucleus conveys and interprets the proprioceptive impulses from all these areas.
The smallest division of trigeminal nerve is the	Ophthalmic nerve
The ophthalmic nerve leaves the cranium through the	Superior orbital fissure

Oral Anatomy

The anterior facial vein is connected to cavernous sinus through	Superior ophthalmic vein; Deep facial vein; Pterygoid plexus of vein
The upper pole of the parotid gland is pierced by the	Auriculotemporal nerve; Superficial temporal vessels; Temporal branch of facial nerve
Lower pole of parotid gland overlaps the	Posterior belly of digastric
The insertion of the medial pterygoid muscle is into the	Medial surface of mandibular ramus
The parotid duct pierces the buccinator muscle and opens into the oral vestibule usually opposite the	Maxillary first-second molar
The piriform recess is located	On either side of the larynx within the laryngopharynx
The recess above the palatine tonsil is	plica semilunaris
The  recess posterior to the salpingopharyugeal folds within the nasopharynx is	pharyngeal recess
Recess between glossoepiglottic fold is	Vallecula
The sensory root of the fifth cranial nerve arise from the	Semilunar ganglion