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Andrews’ keys of Normal permanent occlusion

Andrews’ keys of Normal permanent occlusion

Andrews’ keys of Normal permanent occlusion Static occlusal relations (Andrews’ six keys) : • Molar relationship ( Fig. ). Distal surface of the distal marginal ridge of 6 contacts and occludes with the mesial surface of the mesial marginal ridge of 7; the mesiobuccal cusp of 6 lies in the _groove between the mesial and […]

March 8, 2012 | By | Reply More
Ugly duckling stage

Ugly duckling stage

Ugly duckling stage It is an ugly arrangement of anterior teeth , which is merely a temporary phase during the process of normal development . Here the developing upper permanent canines, causes mesial displacement of roots of permanent incisors around the age of 8 to 9 years. This causes a distal divergence of crowns of […]

March 8, 2012 | By | Reply More
World Dentist Day

World Dentist Day

World Dentist Day 6 March is “World Dentist Day”. Different organization will be observed this day internationally . Bangladesh On the occasion of “World Dentist Day-2012” a grand celebration program is going to be organized By Dhaka Dental College & Hospital at 6th March. The program will start at 8:30 am. Honorable State Minister for […]

March 6, 2012 | By | Reply More
WORLD CANCER DAY 2012

WORLD CANCER DAY 2012

WORLD CANCER DAY 2012 Today is World Cancer Day. Each year on 4 February, WHO supports International Union Against Cancer to promote ways to ease the global burden of cancer. Preventing cancer and raising quality of life for cancer patients are recurring themes. History WCD is an initiative of the Union for International Cancer Control […]

February 4, 2012 | By | Reply More
Disadvantages of Immediate Dentures

Disadvantages of Immediate Dentures

Disadvantages of Immediate Dentures Immediate dentures have a number of disadvantages like : good co-operation is required, with the need for close supervision alveolar bone resorption occurs rapidly, leading to loss of adaptation after care may require many visits including relines / rebases / new dentures increased cost: the provision of relines and further denture […]

January 25, 2012 | By | Reply More
Properties of Clasps

Properties of Clasps

Properties of Clasps Properties of clasps should include the following : Strength. Should be strong enough in thin cross-section to withstand oral forces. Adding molybdenum in small amounts to cobalt chromium alloy increases its strength; however, the addition of nickel decreases its strength while increasing its ductility.  Ductility. In cobalt chromium the grains tend to […]

January 25, 2012 | By | Reply More
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