Comparison of Bond strength between acrylic based soft liner and two different denture bases (3Dprinted and conventional denture base). | ||||
| Egyptian Dental Journal | ||||
| Article 8, Volume 68, Issue 1 - Serial Number 4, January 2022, Page 659-663 PDF (936.5 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/edj.2021.94616.1784 | ||||
 View on SCiNiTO | ||||
| Author | ||||
Mohamed mahmoud dohiem 
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| lecturer of prosthodontics oral and dental medicine zagaig university | ||||
| Abstract | ||||
| Introduction: Soft lines used in case of sore or atrophied mucosa, alleviate inflamed mucosa and for obturators after maxillofacial surgery. but These liners have several problems such as the loss of softness, porosity and poor tear strength, which is of the most serious problems with soft denture liners is the failure of adhesion between the soft denture liner and the denture 2 That may be lead to failure as a result. Material and methods: The samples were divided into two groups (n =40) according to the type of denture base materials: Group I: 3D printed denture base with Acrylic based soft liner (Acrostone Dental & Medical Supplies), Group II: heat cured acrylic denture base with Acrylic based soft liner (Acrostone Dental & Medical Supplies). The samples were tested by shear applied by tensile mode of force. samples were tested by (Instron) the universal testing machine at a crosshead speed of 40 mm/min until complete separation of soft-liner material from the acrylic plates. The maximum force at the point of failure leading to separation was recorded. Result: Bond strength in Group I (acrylic soft liner with conventional heat cured denture base) showed a statistically significant difference when compare to group II (the acrylic based soft liner to 3D printed denture base)Shows P value of 0.000*. CONCLUSION Based on our study findings of this in vitro study, 3Dprinted denture base with acrylic based soft liners had statistically significant lower tensile bond strength values to the conventional heat cured one | ||||
| Keywords | ||||
| soft liner; 3Dprinting denture base; bond strength | ||||
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