Important Signs in Clinical Medicine and their Significance : Murphy's Sign, Auspitz's sign, Trousseau's Sign, etc.

Important Signs and their significance

Sign	Significance
Nikolsky's sign	➤ Seen in Pemphigus, familial benign chronic pemphigus and recessive form of epidermolysis bullosa ➤ Loss of epithelium due to rubbing resulting in raw, sensitive surface
Auspitz's sign	➤ Seen in Psoriasis ➤ If the deep scales are removed, one or more tiny bleeding points are disclosed

Treatment of Acute Necrotising Ulcerative Gingivitis (ANUG)

Treatment of ANUG

First Visit	➥Removal of pseudomembrane and non attached debris after the application of a topical anesthetic ➥Patient is advised to rinse with 3% H2O2 (hydrogen peroxide) in equal dilution with warm water every two hours ➥Patients with systemic symptoms and local lymphadenopathy are placed on Amoxicillin 250 or 500 mg QID and Metronidazole 250 or 500 mg TID

G.V. Black's Classification of Tooth Preparations / Cavity Preparations

Based on anatomical location of carious lesion, Greene Vardiman Black (G.V. Black) classified tooth preparations into five different classes. Later an additional class, class VI was also added. Class I refers to pit and fissure lesions, whereas all other classes are smooth surface lesions.

G.V. Black's Classification of Tooth Preparations

Class I	All pit and fissure preparations. It Includes: ➤ occlusal surfaces of premolars and molars, ➤ occlusal two-thirds of the facial and lingual surfaces of molars, and ➤lingual surfaces of maxillary incisors
Class II	Preparations involving the proximal surfaces of posterior teeth  (i.e. Premolars and Molars)

Dentist

Who is a Dentist / Dental Surgeon ?

A dentist is a person who is licensed by the nation or state's licensing body to practice dentistry independently. He can either run a private practice or work as a government employee or an employee in other's clinic. A dentist can examine and diagnose the disease of your oral cavity, perform restorations, rectify maloccluded teeth by the use of removable and fixed orthodontic appliances, extract your tooth, provide partial or complete / removable dental prostheses, etc. The dentist deals not only with the teeth, the rest of the soft tissues like tongue, palate, buccal and labial mucosa are also dealt by the dentist. Extra-oral lesions, swellings, and tumors of the head and neck region too come to the attention of the dentist first. Some facial reconstruction surgeries, surgical correction of cleft lips and palates, implants,etc. all come under the duties of a dentist or dental surgeon.

MCQs on Oral Histology - Salivary Glands Part 2

# Myoepithelial cells are present in:
A. Striated duct
B. Intercalated duct and terminal duct
C. Serous cells
D. Mucous cells

# Carmalt's glands are:
A. Major salivary glands
B. Minor salivary glands(Retromolar)
C. Minor salivary glands (lingual)
D. Taste buds

MCQs on Oral Histology - Salivary Glands Part 1

# The normal pH of saliva is about:
A. 5.5
B. 9.5
C. 7.5
D. 8.5

# Of the total amount of saliva secreted by all the salivary glands, about 60% is secreted by :
A. Parotid glands
B. Sublingual glands
C. Submandibular glands
D. None of the above

What is Depression? How can we help?

The theme for this year's world health day is depression, with a slogan- Depression: Let's Talk. Depression is aptly chosen as this year's theme because it is taking pandemic proportions in today's competitive world. More and more young generations are diagnosed as having depressions every day attributing to failures in relationships, academics, careers, finances and many other seemingly inconsequential reasons. As per the WHO's definition of health, health is a state of complete physical, mental and social well-being but not merely the absence of disease or infirmity. Yes, a person may seem well from others' perspective but he may be having troublesome issues within himself. He may not feel healthy mentally. Some unknown fear, apathy, anxiety may be lurking in his psyche and he may not know to whom he should consult. It is a global necessity that every one of us understands the fact that nobody is immune to mental illness and we should not attach a stigma to those having mental disorders.

What is depression?
Normally we all feel sad, lethargic, heartbroken and uninterested in any activities during stressful situations or after we face some major losses in life. These mild depressive symptoms are normal as we acknowledge the fact that it's not our day every day. The saying "Everyday is not Sunday" also reminds us that ups and downs in life are inevitable. Depression becomes a disorder when the symptoms become so severe that they interfere with normal functioning, and when they continue for weeks at a time. The sadness of depression is differently both quantitatively as well as qualitatively as compared to normal sadness. The most important feature is the sadness of mood or loss of interest and/or pleasure in almost all activities (pervasive sadness), present throughout the day (persistent sadness). 


Depression is so common that the life-time risk of depression in males is 8-12% and in females is 20-26%. Sadness is usually associated with pessimism and the person suffers from three common types of depressive ideas :
hopelessness (nothing is going to be good in future) ,
helplessness (nobody can help me to become better) and
worthlessness (I cannot do anything in my life, better if I end my life!! )

The person doesn't like to get involved in social interactions and is not excited about things he used to enjoy before. His appetite is decreased and keeps on thinking about some particular events repeatedly and becomes pessimistic. Some other physical manifestations (somatic syndrome) can also be seen as listed in the table below.

The suicidal tendency is seen increased in some of the risk groups. Suicidal risk is much more in the presence of following factors:
a. Presence of marked hopelessness
b. Males over 40 years age; unmarried, divorced/widowed
c. Written/verbal communication of suicidal intent and/or plan
d. Early stages of depression
e. Recovering from depression (At the peak of depression, the patient is usually either too depressed or too retarded to commit suicide)
f. Period of 3 months from recovery.

So, extra attention should be given to those persons. We should give them company, keep them engaged and occupied. We should never give them a chance to be overcomed by their depressive emotions.

How can we help ?
Depression is a disease and as every other disease it can be treated. The depressed person feels better even if we listen to his problems and show some sympathy. We should not mock or ridicule them saying things like, " You are talking nonsense, You're out of your wits, You crazy moron, What makes you so retarded? , Grow up man don't talk sissy, You got to be strong, etc.". That's not going to help.
We need to assure them that they can have their previous happy life back once again if they become aware of their condition. Regular psychiatric consultations should be made and medications should be taken as per the psychiatrist's pescription.

Let's talk about Depression..!!!