2020 01 04

The impact of practical courses on Dental Practitioners Hand skills

Ali Nankali

Aim: Cavity preparation is one of a daily dental practitioners’ involvements, hence clinicians should be confident for their preparations and achieve an appropriate designed cavity for planed restorations. This research was done to assess the strength of cavity preparations and prevention of iatrogenic damages.

Conclusion: Hands on manikin courses are one of the suitable places to help practitioners understand their weakness and improvements, furthermore it may help educational systems to recognise clinicians needed.

 Keywords: cavity preparation, opening contact point, direct vision, indirect vision, iatrogenic damages.

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2020 06 09


Abeera  Abdul Qadir (MSc - Dissertation)

Background: Dentistry is based upon clinical work and without actual work and practicality attached to it, a student may not be able to master even the slightest of techniques that they absolutely must. This conversion of academics into practical work is proven to be somewhat difficult, but if mastered in the early stages is proven to be impactful for students and teachers alike. Despite an excellent provision of dental education in dental schools, there is always a difference among dental graduates in terms of clinical skills. Objective: The primary aim of this audit is to ascertain whether there is any existence of relationship between handwriting, drawing and having extracurricular activity with clinical and practical skills of dental student. Material & Methods: The audit was approved by and conducted at Barts and the London School of Medicine and Dentistry Clinical Skills Lab during the months of March and April 2019. The sample size was estimated using online sample size calculator based on total number of undergraduate students as 343, margin of error 12% and 95% confidence level. The sample size came out as 56 undergraduate students. The data was collected in form of an audit assessment form. Results: The total number of students who participated in the study was 58. Out of 58 dental students this audit included 54% of females and 46% males. Dental students who have achieved 81 to 85% grades in their clinical lab session had smoothness and continuity in their handwriting, they wrote on the line provided, they took care of the size, consistency and similarity between the letters and maintained punctuation marks. Students who got 76-80% had drawn wheels with details, drew seat and chain and maintained symmetry whereas who drew paddles and basket had achieved 81 - 85%. Lastly, 86-90% achievers took care of using shading and other drawing skills to enhance their diagram. Student engaged in hand involved sport had a 90-95% pass percentage out of all followed by students into sewing, musical instrument, non-hand involved sport and finally painting, drawing or art who all achieved 81-85%.Those students who did not get involved in any extracurricular activity had the least grade of that of 3.8 which made their pass percentage to be 71-75%. Conclusion: It is important to emphasize over practical skills in order to perform better clinically. The better are the dental skills, the higher the performance in practical. Training and considering practical skills during dental schooling is traditionally of great importance in dental education. Hence, dexterity, spatial and motor abilities have some impact on success of dental schools.

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2020 08 03

Evaluation of clinical parameters considered to be important in the success rate of 
dental implants by clinicians

Seyedalireza Faramarzifar (MSc - Dissertation)

It seems that implant therapy is a predictable and successful treatment for oral rehabilitation, thus, allowing it to gain tremendous popularity for prosthetic reconstruction in selected patients. To assess the implant therapy performance, among different measures, survival, failure and success of implants are the most common controls implemented by clinicians and researchers. There are different proposed criteria of success, which are used as guideline to evaluate outcomes of implant dentistry. The main goal of this project conducted as an audit is to assess the compatibility of practitioners’ (practising implant dentistry) criteria of implant treatment success with agreed guideline This project was approved and conducted at “Bart’s and the London school of dentistry Implant Review Clinic” in June and July 2019. Based on population number of 20, a sample size of 15 practitioners was selected to achieve confidence level of 95% and marginal error of 12%. Data was collected with a designed questionnaire and checked for accuracy. The proportion of participants in terms of gender was 60% for male 40% for female practitioners. The ratio of staff/student reported at ½ with average work experience of, respectively. 20% of practitioners did not mentioned any parameter of guideline. 20% of sample population noted the guideline parameters completely. 93% of participants mentioned at least one of the frequently used parameters of success rather than guideline. Aesthetic and appearance had the highest level of notation by clinicians. Small proportion of (20%) practitioners noted the same criteria of success with guideline. The number of guideline parameters mentioned by clinicians was higher among staff and female practitioners.  Appearance and aesthetic, a frequently used factor in literature, showed the highest level of popularity among the clinicians. In conclusion, there was a poor level of compatibility between practitioners’ criteria of success about an implant treatment and established guideline criteria of success.  it seems that there is a need of updating the current guideline based on patient-centred approach as well as informing the practitioners with updated guideline. 

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2020 12 10

Cavity preparation using hard tissue lasers in Operative Dentistry

Vesna Karic, Riaan Mulder, Geoffrey Melman

Background: A laser is a device that delivers coherent, monochromatic, and collimated light as a form of energy. Most dental laser devices emit invisible light in the infrared portion of the electromagnetic spectrum.

Methods: This clinical communication is a summary of an application of hard tissue lasers in Operative Dentistry.

Conclusion: Patients prefer the comfort, silence, and lack of vibration of lasers whilst there are also the added benefits such as disinfection and reduced pulpal temperature compared with high-speed drills.

Keywords: lasers, hard tissue lasers, cavity preparation.

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2021 01 18

Existing restrictions and barriers for manufacturing removable dentures using 3D printing technologies

Khaled Alhallak

3D printing technologies have grown rapidly in production of removable dentures particularly in the past a few years. 

Aim: The aim of this research was to investigate the restrictions in the use of 3D printing technologies for producing removable dentures especially in the UK.

Methods: An electronic search was the main method to select dental manufacturers or organizations able to print dentures’ samples for research purposes. Connections were made via phone and by sending emails to the companies’ representatives to discuss the possibility of using their products.

Results: Fourteen dental manufacturers were found offering the use of 3D printing to print dental restorations. But only 5 companies offered printing removable dentures and only one organization was able to offer 3D printed dentures here in the UK. The remainder were not able to sell and ship their resin materials used with 3D printing because of the strict regulations in Europe for receiving or using these materials within the EU even for testing purposes.

Conclusion: There are hidden challenges to finding available options for using 3D printing materials to print removable dentures, especially in the UK. This condition is different in USA and Canada.

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2021 01 18

Infection Control Dilemmas Regarding the Use of Polytetrafluorethylene Tape in Dentistry

Marina Dourou

The widespread use of Polytetrafluoroethylene (PTFE) tape in clinical practice is surrounded by uncertainty regarding bacterial growth and contamination. PTFE tape is not manufactured, distributed or stored with the purpose of being used in a dental clinical setting and since it is not currently identified as a dental material, the production line and storage protocols do not ensure the sterility of the final product.

Aims: The aim of this small-scale preliminary study was to investigate whether PTFE tapes are microbially contaminated, following distribution and prior to application in dental clinical settings.

Materials and Methods: 11 tapes were microbiologically investigated using two separate methods and were incubated both aerobically and anaerobically. Gram staining was performed for all identifiable colonies.

Results: All PTFE tapes were contaminated with microbes, but an uneven distribution of contaminants was observed within each PTFE tape reel. The PTFE tape samples were mainly contaminated with environmental spore-forming bacteria, namely Bacillus licheniformis, Bacillus amyloliquefaciens ssp. Plantarum, Bacillus amyloliquefaciens and Aneurinibacillus migulanus.

Discussion and Conclusion: This preliminary work highlights an area of clinical concern and raises awareness regarding the contamination of PTFE tapes used in dental clinical settings. It also highlights the importance of designing a standardised sterilisation protocol for PTFE tapes in order to ensure that the material is free of bacterial contaminants prior to application.

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