Melted Wax Inlay Patterns

Melted Wax Inlay Patterns

INCIDENTS OF PRACTICE Neuralgia Due to Lower Left Third Molar By S. H orace B eem er, D .D .S., M ason City, Iowa. A m a n , aged 28, complaine...

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INCIDENTS OF PRACTICE Neuralgia Due to Lower Left Third Molar By

S.

H orace

B eem er,

D .D .S.,

M ason

City, Iowa.

A m a n , aged 28, complained of neu­ ralgia. Figure 1 shows lower left third

Fig. 1.

Fig. 2.

molar in position. Figure 2 is post­ operative film of the lower left third molar region. Figure 3 is a roentgeno­ gram of the extracted lower left third molar. The patient reports complete recovery. 302 Foresters Building.

Melted W ax Inlay Patterns By W . M ich.

F.

C

o r b e t t

Third step : Melt inlay pattern wax in a small ladle and pour it into the band until it is full. Allow to cool until the first surface coagulation becomes about one-half the entire surface area. Then, with finger over the end of the band, slip

,

D .D .S.,

H oughton,

F o r three-quarter crown inlays, or any large restoration that is difficult with the ordinary method, a simplified man­ ner of making wax patterns is as follows: First step: Take a 36-gage aluminum seamless band large enough to go over the tooth, allowing a space of about 0.5 mm. between the tooth and the gum tis­ sue at the cervical border. Second step: Soften base-plate wax and press the band into it, leaving the cutout circle in the end of the band to act as a retainer for the melted inlay wax. Jour. A .D .A ., V ol. 26, M ay 1939

Fig. 3.

it over the tooth and force the melted wax into the cavity until the wax is squeezed out at the cervical border. (I use a large ball burnishing instrument for the final pressure.) Cool and re­ move. Fourth step: Take a small No. \ or No. 1 bur and split the band down on a side where there will be no interference in any way with the margins, and care­ fully peel it away. We now have all in one mass a perfect pattern of the cavity that will retain its shape with no distor­ tion. Place the pattern in the cavity of the tooth and trim the surplus occlusal wax away with a sharp instrument until it is down to an approximate occlusion. Now, with a hot burnisher, soften the occlusal portion and have the patient close very lightly on the wax to indicate the amount of trimming needed to finish the case. This method is simple, accurate and a great time saver, as it is efficient in the most difficult cases. 850