3-D models for problem-based and case-based learning in Dentistry

Dr. Yanqi Yang

Dr. Susan BridgesFaculty of Dentistry, HKU

yangyanq@hku.hk

“Electronic patient records” are the trend nowadays.

Clinical treatment

Clinical teaching

Plaster model (PM)

•A special kind of clinical record for dentistry ---- models of the teeth.

•Study models have long been an essential part of dental records.

Plaster model (PM) Virtual model (VM)

•Traditional plaster casts are among the last clinical record in the dental field to be converted into digital media.

•But virtual dental models are gradually becoming more prevalent (Redmond, 2001).

Plaster model (PM)

•Storage and retrieval•Transferability•Durability

Virtual model (VM)Advantages

Simpler storage

Reducing the risk of damage/disappearance/wrong location

Simpler and more effective measuring

Easy transferral to colleagues, other specialists, and even patients

Other functions

Thus,

in order to educate the modern dental

professional, the faculty decided that it

was useful to introduce e-models into

the Bachelor of Dental Surgery (BDS)

curriculum.

gain experience with

handling electronic data

for dental recording

keeping.

have increased access

through digital archiving on

the learning management

system.

Benefits to students

have increased mobility

and flexibility by studying

the models on computers.

no need to borrow and

carry plaster casts.

Benefits to students

Easier duplication means that individual

students will each have access to a set of

e-models.

Benefits to students

Benefits to students

Students will be able to perform model analysis on

their own computers without staff needing to equip

each student with physical model analysis kits which

are problematic to provide.

High quality impressions or stone models

O3Dm(www.o3dm.net/moderndentallab/customerlogin.html)

Download software

Download „Virtual models‟ (5 business days)

How to make e-models?

What have we done?The software of 3-D models is

uploaded to WebCT with approval by

the 3-D models company for using the

software in teaching.

Key topic sessions for BDS students are held to introduce

“Electronic Study Models --- a new mode of records” and to

train how to use the software.

What have we done?

What have we done?

Software installed on the laptops for each PBL tutorial

room (to link with interactive white boards, IWBs)

What have we done?

Traditional plaster casts for PBL and CBL are transferred

to 3-D models and uploaded to WebCT in due time.

What have we done?

Teaching Development Grant:

Blended learning in Dentistry: 3-D resources for

problem-based and case-based learning

Initial student feedback and reasonable access rates indicate that the 3-D models have been generally well accepted by students.

What have we done?

Future work

To evaluate in more detail with respect to areas such as acceptability, appropriateness, accessibility, efficiency, and educational outcomes.

Future work

To use e-models in students‟ assessment/examinations.

Thank you for your

attention!