Third molar cysts

[Allan G. Farman]

But how would you differentiate between a cyst and a follicle on histological or clinical grounds? Both are lined by reduced enamel epithelium?

>>> l.m.brocklebank at DENTAL.GLA.AC.UK 02/08/01 08:10AM >>>
Dear Don and others. We did a study here in Glasgow examining the
histopathology of 222 follicles/cysts removed with impacted third molars.
We were wanting to discover the difference, size-wise, between large
follicles and dentigerous cysts. Measured (on a panoramic radiograph) at
the greatest depth less than 2.5mm was always a folicle, greater than this
there was the possibility/probability of it being a cyst, and greater than
10 (this is not surprising) was always a cyst; in addition asymmetrical
radioluncies were highly likely to be a cyst.

Laetitia

At 15:27 07/02/01 -0500, you wrote:
>Colleagues,
>
>I have a friend who is an oral surgeon who is involved as an expert witness
>in a malpractice case involving third molar surgery with resultant
>parasthesia.  The surgeon is arguing that the tooth needed to come out based
>on widening of the follicular space around impacted tooth (indicating
>suspicion of cystic degeneration or cyst formation).  My friend will be
>asked "how wide is wide enough to be suspicious".  He is not quite sure how
>to answer. I know standard of care can be a very local issue but was
>wondering if anyone had any thoughts regarding the question of when a
>follicular space widens enough to be considered as a potential cyst.
>Personally I have seen a few "cysts" that turned out to be hyperplastic
>follicles. I would appreciate anyone's opinion on this issue. Thank you.
>
>Don Tyndall
>
>
>
>Donald A. Tyndall DDS, MSPH, PhD
>Professor, Diagnostic Sciences and General Dentistry
>Director of Radiology
>UNC-CH School of Dentistry
>Phone: (919)966-2746
>Fax: (919)966-0705
>email: Don_Tyndall at dentistry.unc.edu
>
>
Dr Laetitia Brocklebank
Senior Lecturer in Oral Radiology, University of Glasgow
and
I/C Local Arrangements
13th International Congress of DentoMaxilloFacial Radiology

Glasgow Dental Hospital & School
378 Sauchiehall Street
Glasgow G2 3JZ, UK

Tel.   44 (0)141 211 9640
Fax    44 (0)141 331 2798
e-mail: l.m.brockleban at dental.gla.ac.uk or glasgow2001 at dental.gla.ac.uk

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4 - 8 August 2001 at the Royal Scottish Academy of Music and Drama,
Glasgow, Scotland
President 1999 - 2001: Dr Douglas Lovelock