COMPARATIVE STUDY
JOURNAL ARTICLE

Pendulum appliances with 2 anchorage designs: conventional anchorage vs bone anchorage

Omür Polat-Ozsoy, Beyza Hancioğlu Kircelli, Ayça Arman-Ozçirpici, Z Ozgür Pektaş, Sina Uçkan
American Journal of Orthodontics and Dentofacial Orthopedics 2008, 133 (3): 339.e9-339.e17
18331928

INTRODUCTION: The aim of this retrospective study was to compare the dentoalveolar and skeletal effects obtained with 2 types of pendulum appliance with different anchorage designs: bone-anchored pendulum appliance (BAPA) and conventional pendulum appliance (CPA).

METHODS: The sample consisted of 39 patients (25 girls, 14 boys) with Angle Class II molar relationships. Correction of the molar relationship was achieved with the BAPA with palatal intermaxillary fixation screws for anchorage in the first group (n = 22) and with the CPA in the second group (n = 17). Lateral cephalograms before treatment and at the end of distalization were measured, and changes in the groups and the differences between the groups were analyzed statistically.

RESULTS: The average distalization times were 6.8 months for the BAPA group and 5.1 months for the CPA group. The maxillary first molars were tipped 9.1 degrees in the BAPA group and 5.3 degrees in the CPA group; the molars moved distally 4.8 mm in the BAPA group and 2.7 mm in the CPA group. Despite mesialization of the premolars and proclination of the incisors with the CPA, both premolars were spontaneously distalized, and the incisors were retruded with the BAPA.

CONCLUSIONS: The amount of distal molar movement was similar between the BAPA and the CPA. No anchorage loss or spontaneous distal premolar and incisor movement, which might decrease total treatment time, was seen with the BAPA.

Full Text Links

Find Full Text Links for this Article

Discussion

You are not logged in. Sign Up or Log In to join the discussion.

Trending Papers

Remove bar
Read by QxMD icon Read
18331928
×

Save your favorite articles in one place with a free QxMD account.

×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"