Page 37 - Dental Practice South Asia 18-6

MY TAKE

DR. ALI TUNKIWALA

An excellent article by Mr Thomas lee
accompanies this comment. Revisiting the
core principles of occlusion and articula-
tion is crucial, not only for Full Mouth
Rehabilitation, but also for aesthetic den-
tistry and full arch implant prosthodontics.
FIG 13
Using the dentofacial analyzer for the ori-
population having 1.5mm of Bennett move- anatomy. 9,10 entation of the occlusal plane allows the
8
ment or less. It is recommended to set the mistakes of ear piece face bows to be
articulator to at least 1.5mm of Bennett SUMMARY negated and leaves the clinician with an
movement to create negative errors in lateral A. Using the Kois DFA or doing a Standard ability to make a face-centric treatment
Chewing movements. Functional Mounting to relate the teeth to plan. All clinicians must embrace this sim-
Most semi-adjustable articulators incor- an average anatomical axis may reduce ple, yet effective tool to benefit their
porate a straight-line undercompensated positive errors for less adjustments in patients. The bite and the chewing must be
Bennett guide “a” (Figure 13) meaning the opening and closing movements of the looked at in its dynamic entirety and not
patient can move (curved dotted line) beyond Axis. just from a morphological standpoint. In
this context, we must be able to recreate
the articulator guide (solid line) which may B. Taking an interocclusal record at the the lost tooth structure, anatomically as
create positive errors in lateral chewing Vertical Dimension of Occlusion you want well as possible and then blend the shapes
movements. The “Immediate Side Shift” to be restoring to may reduce positive of cusp slopes and fossae to meet the
articulator in corporate an over compensated errors for less adjustments of the Bite. chewing pathway of the patient. Using the
Bennett guide“b” (Figure 13), meaning the C. It is recommended to set the articulator appropriate articulating papers to fine
articulator can move (solid “S” lines) beyond with a 1.5mm Bennett (Figure 13) move- tune the contacts is an important aspect in
o
the patient’s movements (curved dotted line) ment and a 25 protrusive pathway to pro- this. The cardinal rule of good occlusion is
which may create negative errors, but may duce negative errors for less adjustments to have uniform contacts of equal intensity
also produce flatter anatomy.The Panadent of incising and lateral movements of chew- on all posterior teeth. A shim-stock must
articulator incorporates a curved path com- ing. be added to the armamentarium to check
pensated Bennett guide “c” (Figure 13), For a complete list of references, email: that this has been clinically achieved and
meaning the articulator moves more like the info@dental-practice.biz each tooth from canine backwards must be
patient’s jaw movements which may reduce able to hold it firmly.
positive errors for less adjustments in lateral Dr. Ali Tunkiwala has a Masters Degree
chewing movements and still allow for good in Prosthetic Dentistry from Mumbai
University. Has been an editor and author
of the textbook titled Partial Extraction
About the AUTHOR Therapy in Implant Dentistry. Faculty at
“Impart Education”, A Continuing
Thomas E. Lee President Panadent Corp. He is the son of
Education initiative to nurture and guide
Dr. Robert Lee, who published his research in the Journal of Prosthetic Dentistry in 1969,
which led to the development of the Panadent Articulator System. He holds several motivated clinicians towards predictable
patents for face-bow and articulator designs. Mr. Lee has published several articles and evidence based dental practice. Maintains
has lectured nationally and internationally with his extensive knowledge in articulator a Dental Practice focusing on Implants,
design and its relationship to occlusion and aesthetics Aesthetic Dentistry and Full Mouth
Rehabilitation at Khar (West) in Mumbai
since 25 years.

Dental Practice // November-December 2022 // Vol 18 No 6 37