As such it was decided to provision a new lower complete denture, which would be reinforced. The patient just had an upper complete acrylic denture, with no lower to present due to repeated fractures. Case presentationĪ 46-year-old male was transferred over to me by an associate dentist due to a repeated lower broken denture. The following case describes the management of a unilateral crossbite with the provision of a lower complete acrylic denture and acceptance of compromised aesthetics. The majority of studies have discussed treatments in children, but fewer studies assess treatment options within adults, especially those who are edentate and require some form of dentures to allow masticatory efficiency (Tsarapatsani et al, 1999). The pattern shown involves the buccal cusp of the upper molar, occluding with the central fossa of the lower molar. When a crossbite is detected we class this as class III: mesio-occlusion. Possible aetiology can consist of dental, skeletal or neuromuscular functional components (Kennedy and Osepchook, 2005). It occurs in around 97% of posterior crossbites (Thilander and Lennartsson, 2002).Ī unilateral posterior crossbite can sometimes present with a mandibular midline discrepancy (Sudhakar and Dinesh, 2013). Posterior crossbite is defined as any abnormal buccal-lingual relation between opposing molars, premolars or both in centric occlusion (Kennedy and Osepchook, 2005).Ī unilateral presentation with a functional shift of the mandible towards the crossbite is the most common form of posterior crossbite. Rizwaan Chaudhry discusses dentures and the importance of accepting subtle imperfections to get a positive final result.
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