TY - JOUR ID - TI - Evaluation of the Effect of a Modified Version of Machinable Dental Wax for CAD-CAM Purposes AU - Baidaa Ahmed Abd Allah AU - Saja Ali Muhsin PY - 2021 VL - 8 IS - 1 SP - 44 EP - 52 JO - Journal of Oral and Dental Research مجلة طب الفم والاسنان SN - 23106417 AB - Background Even though laboratories generate a lot of amount of waste material, dental waste management has recently received a lot of attention. Proper waste management and efforts to improve it lead to cost savings. Machinable wax is often a reusable wax; the properties of the wax before and after recycling must be taken into account.The objectives of the present study are to evaluate the hardness and the melting flow of the new modified version of machinable dental wax for CAD-CAM purposes. Materials and Methods Mixing mineral and dental waxes in different ratios resultant: Type (I) with the following composition: melt machinable wax (60g), sticky wax (30g), paraffin wax (5g), and inlay wax (5g). While Type (II): melt machinable wax (55g), sticky wax (30g), paraffin wax (5g), and inlay wax (10g). The two experimental groups of Type (I) and Type (II) wax were compared with one of the commercially available CAD-CAM wax (Dentify, Germany) as a control group. A one-way ANOVA test (post hoc Games-Howell and LSD) was used for this study data analysis. Results After comparing the results, a significant difference in the surface hardness of study groups Type (I) and Type (II) was noticed compared to the control group (P≤0.05). However, there is a non-significant effect noticed for flow index property (p>0.05). Conclusions The recycling of machinable wax block and reuse it as a dental wax ingredient show a superior surface hardness with a modifying of new version CAD-CAM wax. The incorporating of fresh material into recycled dental machinable wax enhanced the surface hardness and kept the melting flow index the same.

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