Benign tumors of the oral cavity

BENIGN AND MALIGNANT TUMOURS OF THE ORAL CAVITY

(ЗЛОЯКІСНІ ТА ДОБРОЯКІСНІ ПУХЛИНИ РОТОВОЇ ПОРОЖНИНИ)

PART I

PRE-TEXT ASSIGNMENTS

Exercise 1. Practice the pronunciation.

abundance [ə'bandəns]

vascularity ['væskjυləriti]

keratinized [kerətə'naizd]

excisional [ek'siʒənəl]

hyperplasia [haipə'pleiziə]

apices ['æpisi:z]

granulomatous [grænjυ'ləυmətəυz]

Exercise 2. Topic vocabulary.

thermal regulation терморегуляції; регулювання температури

nutritional deficiencies недостатність харчування; дефіцит

поживних речовин

blood dyscrasias негайна гіперчутливість патологічне зміна

крові

intrinsic nature природні властивості

abundance of vascularity велика кількість кровоносних судин (в

ділянці тканини)

odontogenic tumour пухлина, зумовлена розвитком зубів;

одонтогеннa пухлина;

conservative surgical approach міні-інвазивний оперативний прийом;

хірургічна тактика; хірургічний доступ; хірургічний підхід

Exercise 3. Skim the text and look for the answers to the following questions

1. How many functions does the oral mucosa have?

2. What are the lesions encountered in the oral cavity?

3. What benign tumours of the oral cavity do you know?

4. Where fibroma can be found?

5. What treatment is indicated in papilloma?

6. What is pregnancy tumour?

7. Is myxoma a benign or malignant odontogenic tumour?

8. Where does cementoma usually appear?

9. What is the difference between osteoma and fibro-osteoma?

10. How many types of epulis do you know?

BENIGN TUMORS OF THE ORAL CAVITY

The oral mucosa has four functions – protection, thermal regulation, sensation and secretion and excretion. The lesions encountered in the oral cavity are:

1.Effect of Chemical agents

2.Effect of Systemic Infections

3.Effect of Endocrine and Metabolic

4.Effect of Nutritional deficiencies

5.Effect of Blood dyscrasias

6.Effect of various skin conditions

7.Effects of intrinsic nature

Fibroma: A benign tumour of fibrous tissue, it may be found in gingival, lips, palate and buccal mucosa. It is hard or soft, pale or reddish depending on the density of collagen and the abundance of vascularity. Treatment is surgery.

Papilloma: These are soft and hard with warty keratinized epithelium. These are seen in gingival, lip, palate, buccal mucosa and tongue and may be at times potentially malignant. Excisional biopsy is indicated.

Pregnancy tumour: This is a hyperplasia developing in course of chronic gingivitis. It is not only seen in pregnant women.

Myxoma: Myxoma of the jaw is derived from embryonal tissue of the dental papilla. It is a benign odontogenic tumour.

Cementoma: A benign odontogenic tumour which appears usually at the apices of lower anterior teeth.

Osteoma and Fibro-osteoma: Osteoma is a compact osteogenic tumour, while fibro-osteoma is diffuse in its configuration. Both are slow growing benign tumours and treated by conservative surgical approach.

These are of four types of Epulis (a solid swelling situated on the gum):

- Granulomatous epulis: A mass of granulomatous tissue forms around a carious tooth.

- Fibrous (fibroid) epulis: It is a simple whorled fibroma arising from the periodontal membrane, present under the gum.

- Giant cell (myeloid) epulis: This is an osteoclastoma arising peripherally in the jaw and presenting under the gum.

POST-TEXT ASSIGNMENTS

Exercise 4. Define the part of speech of the following words

Epithelial, lesion, developing, treatment, reddish, derive, dental, appear, while, by, biopsy, diffuse, embryonal, pregnancy usually, anterior, simple, gingival, in, collagen, mucosa, with, secretion, treat, hyperplasia, may, it, compact, pregnant.

Exercise 5. Give a brief survey of the text.

Exercise 6. Tell in detail about

a) Effect of Chemical agents on benign tumours.

b) Effect of Systemic Infections on benign tumours.

c) Effect of Endocrine and Metabolic abnormalities on benign tumours.

d) Effect of Nutritional deficiencies on benign tumours.

e) Effect of Blood dyscrasias on benign tumours.

f) Effect of various skin conditions on benign tumours.

g) Effects of intrinsic nature on benign tumours.

TEST

1. The oral mucosa has … functions.

a) six

b) five

c) four

d) three

e) two

2. A benign tumour of fibrous tissue, it may be found in gingival, lips, palate and buccal mucosa.

a) сementoma

b) papilloma

c) fibroma

d) myxoma

e) osteoma

3. … is indicated in papilloma.

a) Surgery

b) Excisional biopsy

c) Exacerbation

d) Conservative surgical approach

e) Treating

4. Pregnancy tumour is a hyperplasia developing in course of …

a) chronic gastritis

b) dead pulp

c) thrush

d) stomatitis

e) chronic gingivitis

5. Myxoma of the jaw is a …

a) neoplasm

b) benign tumour

c) swelling

d) malignant tumour

e) benign odontogenic tumour

6. Cementoma is a benign odontogenic tumour which appears usually at the …

a) apices of upper interior teeth

b) apices of lower interior teeth

c) apices of upper anterior teeth

d) apices of lower anterior teeth

e) apices of all teeth

7. Osteoma is a compact …

a) fatty tumour

b) teratoid tumour

c) osteogenic tumour

d) cerebral tumour

e) odontogenic tumour

8. Fibro-osteoma is … in its configuration

a) diffuse

b) brief

c) constant

d) acute

e) spherical

9. These are of … types of Epulis (a solid swelling situated on the gum)

a) six

b) five

c) four

d) three

e) two

10. Fibrous (fibroid) epulis is a simple whorled fibroma arising from the periodontal membrane, present …

a) over the gum

b) behind the tooth

c) under the gum

d) in the gum

e) on the gum

PART II

PRE-TEXT ASSIGNMENTS

Exercise 7. Practice the pronunciation.

odontogenic [əυdəntəυ 'dʒenik]

lining ['lainiŋ]

enormous [i'no:məs]

epithelial [`epi'θi:liəl]

unifocal [jυni'fəυkl]

Exercise 8. Topic vocabulary.

dentigerous cyst зубна кіста

impacted teeth ретеніровані зуби

surgical resection хірургічне видалення

mandibular body тіло нижньої щелепи

cortical expansion кортіковe збільшення в обсязі;

розвиток; зростання

hamartomatous proliferation гамартомне розростання (клітин)

(стосується порушення росту тканини, при якому клітини певного ділянки переважають над клітинами навколишнього зони

enucleation with curettage енуклеація з вишкрібанням

Exercise 9. Read the text closely and make up questions to it

Дата добавления: 2015-10-29