Vet360, December 2016 - Page 8

DENTISTRY 3 Caries Caries are areas of enamel loss that sometimes progress to include dentin and create pulp exposure. Caries are caused by demineralisation from acids released during bacterial fermentation of carbohydrates. Caries are rare in dogs and cats. In dogs, they usually affect the pits in the occlusal areas of the maxillary first molars in larger-breed dogs, especially Labrador Retrievers (Figures 5A-5C). Figure 4G. A malpositioned left mandibular canine creating enamel loss of the maxillary canine and attached gingival loss. Figure 5A. A shepherd's hook explorer placed in caries. Figure 4H. Enamel and gingival loss caused by the malpositioned left mandibular canine in Figure 4G. Figures 5B and 5C. The caries removed with a round bur and the defect filled with light-cured composite before preparation for metallic crown restoration. 4 Enamel hypoplasia This condition occurs from an inadequate deposition of enamel matrix before the tooth emerges from the gingiva due to poor nutrition or a high temperature when the dog is between 9 and 12 weeks old. Enamel hypoplasia can affect one or several teeth and may be focal or multifocal. The Ι½έΉΜ½˜…™™•Ρ•)Ρ••Ρ έ₯±°‘…Ω”…Ι•…́½˜Ή½Ι΅…°•Ή…΅•°Ή•αЁѼ…Ι•…Μ)½˜‘εΑ½Α±…ΝΡ₯Œ½Θ΅₯ΝΝ₯Ήœ•Ή…΅•°ΈΉ…΅•°‘εΑ½Α±…Ν₯„)‘½•ΜΉ½Π…™™•Π‘•₯‘Υ½Ύѕ•Ρ €‘₯Υɕ̀ف…Ή€Ω€Έ)₯ΥΙ”€Ρ$ΈQ‘”±•™Π΅…Ή‘₯‰Υ±…ȁ…Ή₯Ή”Ι½έΈΙ•‘Ս•…ΉΙ•ΝΡ½Ι•ΡΌ…±±•Ω₯…Ρ”Ρ‘”ΡΙ…Υ΅„Α₯ΡΥΙ•₯Έ₯ΥΙ”€Ρ Έ₯Ή₯Ω•Ρ½΅δέ…́Α•Ι™½Ι΅•ΡΌ)ΡΙ•…Ёё”΅Υ½₯Ή₯Ω…°‘•™•ΠΈ()%ΝΝΥ”€ΐ؁π 5 H€ΘΐΔ؁π€ΰ()%Έ…Ι•…́ݑ•Ι”•Ή…΅•°₯́Ή½ΠΑΙ•Ν•ΉΠ°•αΑ½ΝΥΙ”½˜)Ρ‘”ΥΉ‘•Ι±ε₯Ήœ‘•ΉΡ₯Έ…Έ‰”Α…₯Ή™Υ°™Ι½΄₯ΉΙ•…Ν•((