Journal List > J Korean Acad Prosthodont > v.56(4) > 1106321

Lee, Hong, Paek, Noh, Pae, Kim, and Kwon: Evaluation of suitability and stability in a skeletal Class III complete denture patient with flabby tissue: A case report


To obtain denture retention, support, and stability in Class III edentulous cases with flat alveolar ridges and extensive flabby tissue is very difficult. The patient was a 72-year-old male who wore ill-fitting 20 year old dentures made by non-medical institutions. There was flabby tissue on the maxillary anterior ridge. The patient showed Angle Class III skeletal relationship with severe protruded mandible. First, temporary dentures were fabricated to restore the masticatory function, and final dentures were made through non- pressure impression technique and careful the arrangement of the posterior resin teeth. Improvement of the retention and stability of the denture during the occlusal force application is reported. (J Korean Acad Prosthodont 2018;56:295-301)


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Fig. 1.
Pre-operative extraoral photographs. (A) Frontal view without denture, (B) Frontal view with denture, (C) Lateral view without denture, (D) Lateral view with denture.
Fig. 2.
Intraoral photographs showing flabby tissue. (A) Maxilla, (B) Mandible.
Fig. 3.
Existing denture analysis. (A) Poor denture hygiene, (B, C, D) Comparison of existing denture with diagnostic study casts.
Fig. 4.
A severe interarch discrepancy due to skeletal class III relationship with mandibular prognathism was observed. (A) Lateral cephalometric radiograph, (B) Articulated study cast.
Fig. 5.
Temporary denture tooth setup. (A) Frontal view, (B) Lateral view.
Fig. 6.
Test of mastication ability using color changeable chewing gum. (A) Before mastication, (B) Mastication result of existing denture, (C) Mastication result of temporary denture, (D) Color chart.
Fig. 7.
Maxillary final impression. (A) Impression taking, (B) Window opening of flabby tissue area, (C) Additional impression taking with light body silicon impression material, (D) Maxillary final impression.
Fig. 8.
Definitive denture tooth setup. (A, E) Semi-Anatomic, (B, D, F) Lingualized, (C, G, H) Cross bite.
Fig. 9.
Post insertion extraoral photographs. (A) Existing denture, Lateral view, (B) Provisional denture, Lateral view.
Fig. 10.
Food for masticatory test. (A) Cashew nut, walnut 2 g, (B) Cashew nut, Almond 2 g, (C) Semi-dried squid 3 g, (D) Apple 9.5 g.
Fig. 11.
Denture tilting test. (A) Cotton roll bite and impression taking with bite impression material, (B) Angle measurement.
Table 1.
Masticatory test result
  Semi-Anatomic Lingualized Crossbite
Cashew nut, Walnut 1m 17s 1m 29s 1m 59s
Cashew nut, Almond 2m 1s 2m 56s 2m 38s
Semi-dried squid 2m 56s 3m 10s 4m
Apple 1m 59s 2m 16s 2m 44s
Table 2.
Denture tilting test result
  Semi-anatomic Lingualized Crossbite
Right Left Right Left Right Left
1st 4.4° 4.4° 2.1°
2nd 5.4° 4.9° 2.6° 4.7° 1.9°
3rd 5.3° 3.9° 4.1° 3.2° 2.9°
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