LESSON 5 - ORAL PROPHYLAXIS

Sickle Scaler

• heavy instrument used to remove supragingival calculus

• have a flat surface and two cutting edges converge in sharply pointed tip

Rubber cups

• consists of rubber shell with or without webbed configurations in hollow interior

• used in the hanadpiece w/ special prophylaxis angle

• use a good cleansing and polishing paste that contains fluoride, keep it moist to minimize frictional heat.

Bristle Brushes

• available in wheel and cup

• bristles are stiff

• use of brush should beconfined to crown

Dental tape/floss

• used for polishing proximal surfaces that are inaccessible to other polishing ins.

Accessibility

• facilitates throughness of instrumentation.

• position of px and operator should provide maximal accessibility to area of operation

Modified pen grasp

• pad of middle finger rest on shank

Standard pen grasp

• side of middle finger rest on shankp

palm and thumb grasp

• used for stabilizing instruments during sharpening

Intraoral conventional finger rest

• fourth finger rest on occlusal surface of adj teethI

Intraoral cross-arch finger rest

• fourth finger rest on incisal surface of tooth and opposite side of same arch

Intraoral opposite arch finger rest

• fourth finger rest on mandibular teeth while max. post. teeth are instrumented

Intraoral finger on finger rest

• fourth finger rest on index of non operating hand

extraoral palm up fulcrum

• backs of fingers rest on right lateral aspect of mandible while max. right post, teeth are instrumented

extraoral palm down

• front surfaces of fingers rest on left lateral aspect of mandible while max. left post. are instrumented

Index finger - reinforced rest

• index finger placed on shank for pressure and control

Thumb reinforced rest

• thumb is placed on handle for control in max. right. post. lingual region

ADAPTATION

• manner which working end of periodontal instrument placed against surface of tooth

• objective is to make working end of instrument conform to contour of tooth.

LATERAL PRESSURE

• refers to pressure created when force is applied against surface of tooth

Explatory Stroke

• light “feeling” stroke used with probes and explorer evaluate dimensions of pocket and to detect calculus and irregularities of tooth surfface.

Scaling stroke

• short, powerful pull stroke used with bladed instrument for removal of both supragingival and subgingival calculus

Root planning stroke

• moderate to light pull stroke used for final smoothing and planing of root

Scaling

• process by which biofilm and calculus are removed from both supragingival and subgingivval tooth surface