Habits/ dental implant courses by Indian dental academy

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HABITS

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INDIAN DENTAL ACADEMY Leader in continuing dental education www.indiandentalacademy.com

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Thumb / Digit sucking Tongue thrusting Lip-sucking / lip-biting Nail biting Mouth breathing Bruxism www.indiandentalacademy.com


Thumb / digit sucking habit • Freudian’s psychoanalytic theory

• Benjamin’s learned-behavior theory www.indiandentalacademy.com


Haryett (1967) experiment Children were divided into 6 grps. 1) no treatment 2) psychological t/t 3) palatal arch 4) palatal arch & psychological t/t 5) palatal crib* 6) palatal crib & psychological t/t www.indiandentalacademy.com


Rooting & placing reflex theory

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Clinical manifestations

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Extra-oral convex profile, incompetent lips, Increase in ant. face ht. (long face) Saggital • Proclination of upper anteriors • Retroclination of lower anteriors • Protruded premaxilla • Retruded mandible • Class II skeletal (&/or dental) relation

Vertical • Anterior open bite • Intrusion of lower anteriors Transverse • Collapse of upper arch (posterior crossbite)

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Treatment of thumb-sucking • Phase 1 – normal & sub-clinically significant sucking (0-3 yrs.) encourage breast feeding Nuk-sauger nipple

• Phase 2 – clinically significant sucking (3-7yrs.) psychological counseling extra-oral restraining device

• Phase 3 – intractable sucking (7yrs. Onwards)

psychological counseling reminder charts & parental guidance intra-oral appliance mechanical obstruction neuromuscular aid psychological crutch

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Mechanical blocking device • Rake • Fork • Grate

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Tongue thrusting • Anterior

• Posterior (lateral)

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Etiology of ant. Tongue thrust • • • • • •

Bottle feeding Inheritance Enlarged tongue Ankyloglossia Enlarged tonsils / adenoids Secondary to thumb-sucking habit www.indiandentalacademy.com


• Tongue at rest www.indiandentalacademy.com


Preparatory swallow : - bolus collected on posterior part of tongue - complete seal www.indiandentalacademy.com


• Oral phase : -palate withdraws - Tongue drops - - hyoid bone starts to rise www.indiandentalacademy.com


• Pharyngeal phase : - superior pharyngeal wall constricts - hyoid moves further upward & forward www.indiandentalacademy.com


• Esophageal phase : - return to rest

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Characteristics of tongue thrust • A thrusting movement of tongue against ant. teeth • Slight or no contraction of muscles of mastication • Strong contraction of the lip musculature • Movement of the hyoid bone in oblique or forward direction • Distortion of speech sounds

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Lip-sucking / lip-biting • Mostly lower lip

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Mouth breathing

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Thank you www.indiandentalacademy.com Leader in continuing dental education

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