TOPIC: SINGLE COMPLETE DENTURES AND IMMEDIATE DENTURES
🎯 KEY FACTS
🔹Continuous gum denture is an artificial denture consisting of the porcelain teeth and tinted porcelain denture base material fused to a platinum base.
🔹Immediate dentures should be removed by the dentist after 24 h of wearing.
🔹Thickness of the palatal surface of the maxillary denture should not be more than 2 mm
🔍 DEFINITION:
🔺Immediate Denture: Any removable dental prosthesis fabricated for placement immediately following the removal of a natural tooth/teeth’. (GPT 8th Ed)
🔺Combination Syndrome: it occurs when an edentulous maxilla is opposed by natural mandibular anterior teeth. It is also called anterior hyperfunction syndrome.
📌 TYPES OF IMMEDIATE DENTURES
💡There are two types of immediate dentures:
(i) Conventional Immediate Denture: After healing, the immediate denture is either refitted or relined to serve as a long-term prosthesis.
(ii) Interim Immediate Denture: It is worn by the patient only during the healing period. It is then replaced by a new prosthesis.
💠 FEATURES OF COMBINATION SYNDROME
🔸Loss of bone from the anterior portion of the maxillary ridge
🔸Downward growth of the maxillary tuberosities
🔸Papillary hyperplasia of the mucosa of the hard palate
🔸Extrusion of the lower anterior teeth
🔸Loss of alveolar bone and ridge height, beneath the mandibular removable partial denture bases
📣 6 Associated Changes Observed in Combination Syndrome as follows:
(i) Loss of vertical dimension of occlusion
(ii) Occlusal plane discrepancy
(iii) Development of epulis fissuratum
(iv) Anterior spatial repositioning of the mandible
(v) Poor adaptation of the prosthesis
(vi) Periodontal changes
📌 TYPES OF SINGLE COMPLETE DENTURES
💡The following are the types of single complete dentures:
🔹Mandibular denture to oppose natural maxillary teeth
🔹Single complete maxillary denture opposing natural mandibular teeth
🔹Complete maxillary denture to oppose a partially edentulous mandibular arch with fixed prosthesis
🔹Complete maxillary denture opposing a partially edentulous lower arch and a removable partial denture
🔹Single complete denture opposing the existing complete denture
🔎 TECHNIQUES TO MODIFY NATURAL TEETH
💡 Various techniques used to modify the natural teeth as follows:
1. M.G. Swenson technique (1964)
2. A.A. Yurkstas technique (1968)
3. R.W. Bruce technique (1971)
4. C.O. Boucher et al. technique (1975)