ds (15) has been referred again for assessment on NHS as one of his adult teeth has not come through but is turning horizontally in the gum and may hit the root of the adjacent tooth, killing it. Originally he was referred for a twin block brace to enlarge his mouth and bring the jaw forward, reducing the overbite , but after several appointments he refused to go ahead with treatment. He is dyspraxic and quite sensitive about his mouth although normally reasonably compliant. All not helped by the orthodontist disagreeing with our dentist's opinion as to whether it would be a functional issue or not and lacking in bedside manner such that she wasn't prepared to spend NHS funds unless he was 100% committed. Anyway now almost 2 years later we have another appointment with same orthodontist. Would anyone know what he likely recommendation for treatment is and have advice as to how to convince ds to agree this time please?