[Orthodontics in general practice. 4. Eruption guidance appliances in orthodontics]. / Orthodontie in de algemene tandartspraktijk. 4. Eruptiegeleidende apparatuur in de orthodontie.

Eruption guidance appliances are recommended for early orthodontic treatment or prevention of malocclusions. The treatment effect of eruption guidance appliances and functional appliances is similar. In addition to dentoalveolar and skeletal effects, eruption guidance appliances would also have myofunctional effects for treating open mouth behaviour and swallowing problems. However, there is no solid evidence for the myofunctional effect claimed. The position of erution guidance appliances in the orthodontic treatment arsenal is limited: early treatment of Angle Class II malocclusion in 2 phases has no advantage over a 2 phase treatment. When eruption guidance is needed, preference is given to an individually produced appliance.

[Mouthguards: a difficult choice?]. / Mondbeschermers: een lastige keuze?

It is the dentists' task to advise their patients what type of mouthguard grants the best possible protection. It is generally accepted that off-the-counter mouthguards are not sufficiently protective. These mouthguards are usually ill-fitting and not worn in the mouth but in the sporting shorts' pocket instead. A custom-fabricated mouthguard is proven to offer maximal protection. A mouthguard has to offer adequate protection with high comfort. A composite laminate construction and space between the inner surface of the mouthguard and the labial surface of the upper front teeth are essential for adequate protection. Transitional dentition and/or orthodontic appliances are no limitation to fabricate a custom-formed mouthguard.