Orthodontic intervention in the early mixed dentition: A prospective, controlled study on the effects of the eruption guidance appliance

Keski-Nisula, Katri; Hernesniemi, Riitta; Heiskanen, Maritta; Keski-Nisula, Leo; Varrela, Juha

doi:10.1016/j.ajodo.2006.05.039

Cited by 50 publications

(51 citation statements)

References 14 publications

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“…These children as well as those who refused the treatment or did not cooperate were excluded from the present analyses. 9 The mean active treatment time was 3.3 years (range 5.1 to 8.4 years). The control group was a random sample of 104 children from Seinä joki (population 30,000) who fulfilled the same criteria, ie, they represented the 1992 and 1993 age cohorts, were screened during the late deciduous dentition period, and had similar occlusal deviations.…”

Section: Methodsmentioning

confidence: 99%

“…If difficulties were encountered, daytime wear of 1 hour was recommended until the problems with night-wear disappeared. 9 The average duration of active treatment was 3.3 years. At point T2 all treated children entered a retention period during which the last of the appliances was used as a retainer, two nights per week.…”

Section: Methodsmentioning

confidence: 99%

“…A comparison with an untreated control group with similar malocclusions revealed that an efficient Class II correction, along with a general normalization of the occlusal development, was achieved in the majority of the patients. 9 The purpose was to cephalometrically analyze craniofacial and dentoalveolar morphology in children who had undergone orthodontic intervention with the eruption guidance appliance in the early mixed dentition.…”

Section: Introductionmentioning

confidence: 99%

“…[3][4][5][6] However, other studies have reported considerably better results after an early intervention. [7][8][9] A recent clinical trial investigated the occlusal effects of the eruption guidance appliance. 9 Complete age cohorts of children were screened in the deciduous dentition, and orthodontic intervention with the eruption guidance appliance was carried out in the mixed dentition in children showing a tendency to Class II occlusion, crowding, increased overjet or overbite with lack of tooth-to-tooth contact between the incisors, anterior crossbite, and/or buccal crossbite (scissors bite).…”

Section: Introductionmentioning

confidence: 99%

“…[7][8][9] A recent clinical trial investigated the occlusal effects of the eruption guidance appliance. 9 Complete age cohorts of children were screened in the deciduous dentition, and orthodontic intervention with the eruption guidance appliance was carried out in the mixed dentition in children showing a tendency to Class II occlusion, crowding, increased overjet or overbite with lack of tooth-to-tooth contact between the incisors, anterior crossbite, and/or buccal crossbite (scissors bite). A comparison with an untreated control group with similar malocclusions revealed that an efficient Class II correction, along with a general normalization of the occlusal development, was achieved in the majority of the patients.…”

Section: Introductionmentioning

confidence: 99%

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Dentofacial Changes after Orthodontic Intervention with Eruption Guidance Appliance in the Early Mixed Dentition

Keski-Nisula

Salo

et al. 2008

The Angle Orthodontist

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Objective: To evaluate skeletal and dentoalveolar changes induced by the eruption guidance appliance in the early mixed dentition. Materials and Methods: Pre-and posttreatment cephalometric radiographs of 115 consecutively treated children, 62 boys and 53 girls, were compared with those obtained from a control group of 104 children, 52 boys and 52 girls. Pretreatment radiographs were taken at the deciduousmixed dentition interphase (T1) and after full eruption of all permanent incisors and first molars (T2). The mean age of the children in both groups was 5.1 years at T1 and 8.4 years at T2. Results: A significant difference between the groups at T2 was found in the mandibular length, midfacial length, and maxillomandibular differential. The increase in mandibular length was 11.1 mm in the treatment group and 7.2 mm in the control group. No differences were found in measurements of maxillary position or size. There was a significant shift toward a Class I relationship in the treatment group. Labial tipping and linear protrusion of the mandibular incisors was evident in the treatment group at T2. There was no effect on the inclination or position of the maxillary incisors. Conclusions: Occlusal correction was achieved mainly through changes in the dentoalveolar region of the mandible. In addition, the appliance enhanced condylar growth resulting in a clinically significant increase in mandibular length. No effect was observed on maxillary position, maxillary size, inclination or protrusion of the maxillary incisors, or facial height.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%