SYSTEMIC TYPE IV IMMUNE RESPONSE: AGAINST POLYMETHYL METHACRYLATE (PMMA) BASE MATERIAL: CASE REPORT


Topdağı B., Bayındır F.

Türk prostodonti ve implantoloji derneği 7. Uluslararası bahar sempozyumu, , İstanbul, Türkiye, 21 - 22 Ekim 2022, ss.67-68

  • Yayın Türü: Bildiri / Özet Bildiri
  • Basıldığı Şehir: İstanbul
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.67-68
  • Atatürk Üniversitesi Adresli: Evet

Özet

Conventional total dentures are a type of prosthesis that restores existing aesthetic, function,
chewing and speech disorders in patients with complete edentulism. It is known that this
type of prosthesis has been used by patients for many years with the appropriate diagnosis,
treatment plan and use of appropriate materials. (Mack 1978) The part of the total dentures
that is in direct contact with the oral tissues is called the denture base. When we look at the
historical background of dental prosthesis base materials, it is seen that bone, wood, ivory
and vulcanized rubber are used, and today, poly methyl methacrylate (PMMA) is widely used.
(Meng and Latta 2005) Its polishability and ease of processing are the reasons for its routine
use. (Meng and Latta 2005) Despite all its positive properties, the material has poor impact and
fatigue resistance. It is aimed to improve the mechanical properties of the material by adding
various fibers such as PMMA to the PMMA structure. (Mowade, Dange et al. 2012) Although
PMMA and its reinforced varieties have many advantages in the construction of full dentures, its
use may be limited for some patients.
PMMA is a type of synthetic resin-based polymers (Tillberg, Stenberg et al. 2009). For this
reason, it has been reported that the most important clinical condition limiting the use of
PMMA is hypersensitivity and allergic reactions due to residual monomer. (Meng and Latta
2005) The signs and symptoms of oral contact allergies vary. (Tosti, Piraccini et al. 1997) In the
early period, symptoms of different types and severity may occur, ranging from mild mucosal
complaints to anaphylactic reactions, which can be confused with an ordinary prosthetic
impact. (Pérez and Donado 2003) Therefore, when allergy is suspected,
Patch test, which is done by contacting the purified allergen substance with a certain part of
the body for 24 to 72 hours, should be applied to the patient.(Kamath, Setlur et al. 2015)
This case report describes a 71-year-old Caucasian male patient who used a total prosthesis
made of PMMA material for 15 years.