Maxillary Defects and Cleft Lip/Palate

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Questions and Answers

What is the ratio of cleft lip with or without cleft palate?

1:2000

1:1000 (correct)

1:500

1:5000

What is the basis for classifying clefts into different types?

The age of the patient

The size of the cleft

The extent of the defect (correct)

The location of the cleft

What are the two types of maxillary defects classified by extent?

Congenital or acquired defects

Mandibular or maxillary defects

Anterior or posterior maxillary defects

Total or partial maxillectomy (correct)

What is the most common type of unilateral cleft lip?

Left side Signup and view all the answers

Who proposed a classification of partial maxillary defects based on their extent?

Aramany Signup and view all the answers

How many types of cleft palate are included in Veau's classification?

Four Signup and view all the answers

What are the causes of congenital defects?

Infections, drugs, poor diet, hormonal imbalance, and genetic factors Signup and view all the answers

What causes an anterior cleft?

Deficient primary palate Signup and view all the answers

What are the two types of mandibular defects?

Continuity or discontinuity Signup and view all the answers

Who proposed a classification of acquired mandibular defects?

Cantor and Curtis Signup and view all the answers

What type of prosthesis should be provided to young patients with maxillofacial defects?

Well-fitting interim Signup and view all the answers

Why are removable interim partial dentures preferred over fixed prostheses?

They are more aesthetically pleasing Signup and view all the answers

What is the most common cause of acquired mandibular defects?

Neoplastic resection Signup and view all the answers

Which type of patients with clefts are easier to manage?

Those with bone grafts to fill alveolar clefts Signup and view all the answers

Are congenital mandibular defects requiring maxillofacial prostheses common or uncommon?

Uncommon Signup and view all the answers

Which type of tumors require extensive resection?

Malignant tumors Signup and view all the answers

How are traumatic defects of the mandible discussed?

Separately Signup and view all the answers

What can be used to restore defects acquired due to surgical resection?

Obturators Signup and view all the answers

What can be used to replace missing teeth in maxillary defects?

Implants Signup and view all the answers

How are posterior cleft palate cases usually treated?

With speech bulbs and palatal lift prosthesis Signup and view all the answers

Study Notes

Maxillary defects can be congenital or acquired.
Congenital defects include cleft lip and cleft palate.
Other congenital defects are treated using the same principles as cleft lip/palate cases.
Aetiology of congenital defects includes infections, drugs, poor diet, hormonal imbalance, and genetic factors.
Cleft lip with or without cleft palate occurs in a ratio of 1:1000 and is twice as common in males.
Unilateral cleft lip is more common on the left side.
Clefts can be classified into three types based on the extent of the defect.
Class I includes cleft lip with cleft alveolus (primary palate).
Class II includes cleft of hard and soft palate (secondary palate).
Class III is a combination of Class I and II.

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Description

Test your knowledge on maxillary defects and cleft lip/palate with this informative quiz. Learn about the different types of congenital defects, their aetiology, and treatment approaches. Explore the classification of clefts based on the extent of the defect and their prevalence in males and females. Gain valuable insights on this topic and improve your understanding of maxillary defects.