EFFECT OF A LOCALLY MANUFACTURED TOOTHBRUSHING SIMULATOR ON THE MONOMER ELUTION OF CAD/CAM RESIN COMPOSITE BLOCK - A PILOT STUDY Objective: This pilot study aimed to calibrate the high-performance liquid chromatography (HPLC) protocol for detection and quantification of monomer that may be eluted from a computer-aided design and computer-aided manufacturing (CAD/CAM) resin composite block (RCB) when subjected to an abrasion test with a toothbrushing simulator. Materials and methods: CAD/CAM RCB (Shofu Block HC) were sectioned and randomly allocated into two groups made up of Control group (CT) group (n = 4), and Toothbrush Abrasion (TA) group (n = 4). CT group was subjected to no surface treatment and TA group was subjected to a toothbrushing wear test following immersion of both groups in artificial saliva for 7 days. High Performance Liquid Chromatography (HPLC) was used to separate and identify urethane dimethacrylate (UDMA) and triethylene glycol dimethacrylate (TEGDMA) that were eluted from the slurry produced following the toothbrushing abrasion test of the TA group and from storage solution of artificial saliva of the CT group. Results: After the toothbrush wear test, 6.192 to 16.937 ng/µL of UDMA eluted from the TA group and no UDMA was detected in the CT group. TEGDMA was not detected from both the CT and TA groups. Conclusion and clinical significance: The HPLC protocol has been calibrated and toothbrushing wear resulted in detectable UDMA released from Shofu HC Block at a level that is not harmful to the patient.

ABSTRACT This study aimed to determine the influence of dental aesthetics in finding a job as a dentist and the employer’s willingness to interact in personal and professional setting. Ten dental students’ smiling photographs were taken prior to the correction of their dental aesthetic problems. The images were digitally altered to an ideal smile. Two different questionnaires were prepared (Groups A and B) with the images with or without alteration (ideal and non-ideal smile). The images with an ideal smile and non-ideal smile were randomly allocated in each group and assessed by 84 private dental practitioners who has the authority of hiring another dentist in their practice. Four questions were asked on the likelihood of being hired, friendliness, intelligence, and good clinical skills. In general, the students with ideal smile were more likely to be hired (p < 0.05) except for those presented with buccally erupted canine and mild median diastema. Students with ideal smile scored higher in terms of friendliness and intelligence than the non-ideal smile. Most of them did not correlate a smile to an individual’s clinical skills and manual dexterity (p > 0.05). In conclusion, individuals with an ideal smile was graded more friendly and intelligent thus increases the employer’s willingness to interact personally and is more likely to be hired in contrast to a person with a non-ideal smile. Therefore, an aesthetically pleasing smile is one of the factors affecting the chances of a dentist to be hired and improve their personal interaction with people.
Esthetics, Dental--psychology

Management of traumatic dental injuries (TDI) in a young patient may range from simple to complex. In a situation where teeth are lost, a reliable and conservative treatment option is an implant-supported fixed dental prosthesis (i-FDP), as this treatment option negates the need to prepare sound abutment teeth as in the case of conventional fixed bridges. However, the placement of implants is usually prosthetically driven to allow for a 3D functional and aesthetic restoration. In the presence of severe skeletal Class III malocclusion, treatment may incorporate pre-surgical orthodontic treatment, followed by jaw surgery to correct the skeletal discrepancies and finally post-surgical orthodontic treatment before the rehabilitation with implants. A multidisciplinary treatment approach in a stepwise manner is required to address the patient’s overall treatment needs. This case report presents a joint prosthodontics, orthodontics and oral maxillofacial surgical management of a young adult male patient with a Skeletal Class III malocclusion who required rehabilitation of avulsed missing anterior teeth sustained from childhood TDI. The severity of the skeletal relationship required a Le Fort I maxillary advancement and a bilateral sagittal split osteotomy for the setback of the mandible in combination with orthodontics for correction of malocclusion and arch relationship prior to implant placement. Correction of the malocclusion and jaw deformity allowed the functional and aesthetic rehabilitation of the missing teeth using an i-FDP.