Accesso libero

Skeletal, dentoalveolar, and buccal bone changes using hybrid and tooth-borne expanders for RME and SARME in different growth stages

Emre Kayalar
Emre Kayalar
, 
Sonmez Fıratli
Sonmez Fıratli
, 
M. Ali Darendeliler
M. Ali Darendeliler
, 
Kerem Dalci
Kerem Dalci
 e 
Oyku Dalci
Oyku Dalci
   | 04 nov 2022
Australasian Orthodontic Journal's Cover Image
INFORMAZIONI SU QUESTO ARTICOLO
Articolo precedente
Articolo Successivo
Cita
Article Category: research-article
Pubblicato online: 04 nov 2022
Pagine: 355 - 367
Ricevuto: 01 apr 2022
Accettato: 01 set 2022
DOI: https://doi.org/10.2478/aoj-2022.0036
© 2022 Emre Kayalar et al., published by Sciendo
This work is licensed under the Creative Commons Attribution 4.0 International License.

Figure 1.

Rapid maxillary expander designs. A, Tooth borne expander; B, Hybrid expander for EA and LA; C, Hybrid expander for adults.
Rapid maxillary expander designs. A, Tooth borne expander; B, Hybrid expander for EA and LA; C, Hybrid expander for adults.

Figure 2.

Posterior linear and angular measurements in the coronal view.
Posterior linear and angular measurements in the coronal view.

Figure 3.

Anterior linear and angular measurements in the coronal view.
Anterior linear and angular measurements in the coronal view.

Figure 4.

Buccal alveolar bone measurements.
Buccal alveolar bone measurements.

Maxillary skeletal, dental, nasal and buccal alveolar bone changes in TB Group, for three different growth stages.

Tooth borne
Early adolescent Late adolescent Adult Early vs. Late adolescents Late adolescent vs. Adult Adult vs. Early adolescent
Mean SD Mean SD Mean SD p p p
Skeletal measurements
 EMW_6 2.33*** 0.98 2.97** 2.12 1.80* 1.74 0.68 0.29 0.77
 EMW_4 4.70*** 0.99 5.15*** 2.39 3.82*** 1.84 0.88 0.29 0.59
 IMW_6 3.19** 2.12 1.82* 1.80 2.15*** 1.27 0.21 0.91 0.40
 IMW_4 2.51*** 1.38 3.41*** 1.45 3.23*** 1.22 0.33 0.96 0.49
 NW_6 2.76*** 1.12 2.82*** 1.35 1.47*** 0.58 0.99 0.034* 0.016*
 NW_4 2.57*** 0.57 2.03*** 1.68 1.49*** 1.08 0.64 0.70 0.036*
Dental measurements
 BuAC_6 6.84*** 1.19 7.15*** 1.85 6.16*** 1.04 0.88 0.27 0.53
 BuCuW_6 6.92*** 1.03 8.94*** 1.74 7.25*** 1.77 0.019** 0.055 0.88
 BuAC_4 6.92*** 1.25 7.04*** 2.65 5.69*** 0.95 0.99 0.36 0.06
 BuCuW_4 7.73*** 1.68 8.36*** 2.14 7.52*** 1.68 0.75 0.59 0.97
 Inc_26 5.31** 3.68 6.24*** 3.56 7.78*** 3.58 0.83 0.61 0.29
 Inc_24 7.19** 4.47 6.94*** 2.62 5.80*** 3.10 0.99 0.68 0.71
 ACA_26 6.53* 2.26 7.96*** 3.97 5.87*** 2.66 0.60 0.31 0.89
 ACA_24 9.41** 6.60 12.26*** 5.18 3.69*** 4.04 0.49 0.007** 0.08
Periodontal measurements
 U4_CEJ10 −1.06 0.69 −0.59 0.52 −0.43 0.58 0.21 0.84 0.08
 U4_CEJ5 −0.75 0.41 −0.82 0.60 −0.56 0.37 0.95 0.47 0.65
 U4_CEJ3 −0.95 0.25 −0.86 0.62 −0.24 0.55 0.91 0.035* 0.009**
 U6_CEJ10 −1.39 0.96 −1.38 0.68 −0.29 0.47 1.00 0.006** 0.007**
 U6_CEJ5 −0.98 0.39 −1.05 0.53 −0.70 0.58 0.98 0.93 0.98
 U6_CEJ3 −0.69 0.45 −0.65 0.70 −0.74 0.42 0.91 0.20 0.33

Initial (T0) skeleto-dental characteristics of sample and expansion screw activation amounts.

Early adolescent Late adolescent Adult
Tooth borne Hybrid Tooth borne Hybrid Tooth borne Hybrid
Mean SD Mean SD p Mean SD Mean SD p Mean SD Mean SD p
+Skeletal characteristics
 EMW_6 60.49 2.88 63.72 5.53 0.118 63.59 6.51 60.12 8.62 0.323 61.08 4.45 61.44 2.89 0.833
 EMW_4 39.82 2.76 40.98 3.20 0.400 38.15 2.41 38.24 4.19 0.953 36.95 4.34 36.26 3.82 0.711
 IMW_6 17.86 2.54 16.47 4.14 0.377 16.96 5.84 14.24 4.49 0.257 25.86 2.18 25.33 2.08 0.585
 IMW _4 11.39 3.99 13.82 3.53 0.166 12.25 1.91 12.71 3.79 0.749 17.39 3.62 17.83 2.26 0.751
 NW_6 27.65 1.82 29.36 1.96 0.058 30.22 3.2 30.64 1.25 0.707 31.22 3.53 31.44 2.58 0.871
 NW_4 25.55 1.78 24.32 2.49 0.220 26.57 4.41 24.87 2.56 0.312 28.21 3.8 26.49 3.11 0.282
+Dental characteristics
 BuAC_6 51.13 2.25 52.54 1.78 0.140 50.88 4.0 50.84 3.67 0.983 49.88 2.42 50.19 2.63 0.787
 BuCuW_6 50.74 2.9 50.87 1.84 0.902 48.96 4.68 50.08 4.14 0.579 48.11 2.91 47.37 3.13 0.591
 BuAC_4 41.05 1.9 42.2 1.65 0.165 40.09 2.51 41.01 3.79 0.548 39.02 3.06 40.16 2.84 0.400
 BuCuW_4 38.88 2.67 39.78 1.6 0.371 37.1 3.22 38.76 3.98 0.336 35.27 2.02 37.22 1.42 0.023*
 +++SCREW ACTIVATION (mm) 7.21 0.95 7.72 1.25 0.325 7.98 2.4 7.41 1.58 0.172 7 0 7 0 1.000

Measurements on CBCT scans.

External maxillary measurements (Oriented Upper 6s and 4s-Linear) (Fig. 2A):
 EMW maxillary width coincident with the lower border of the internal hard palate
 BuAC maxillary width between the buccal alveolar crests
 BuCuW dental arch external width measured at the level of the buccal cusp tips
Internal maxillary measurements in the coronal view (Oriented at Upper 6s and 4s-Linear) (Fig. 2B):
 NW width of the nasal cavity at its widest dimension
 IMW width between the most concave aspects of the hard palate
Angular measurements in the coronal view are as follows (Figs. 2 and 3):
 Inc the angle between the palatal cusp and the internal hard palate (Fig. 3B)
 ACA the angle between the palatal alveolar crest and the internal hard palate (Fig. 3A)
Buccal Alveolar bone thickness (BABT) measurements in the coronal view (Fig. 4)
 cej3 Distance from the outer surface of the buccal alveolar plate and the outer surface of the buccal root 3 mm above the CEJ
 cej5 Distance from the outer surface of the buccal alveolar plate and the outer surface of the buccal root 5 mm above the CEJ
 cej10 Distance from the outer surface of the buccal alveolar plate and the outer surface of the buccal root 10mm above the CEJ

Demographic characteristics of sample.

Groups n CS stage Mean age, years Male Female
Tooth borne (TB) n = 30
 1 TB RME-Early adolescents (EA) 10 3-4 12.1 ± 0.8 6 4
 2 TB RME-Late adolescents (LA) 10 5 14.7 ± 0.8 4 6
 3 TB SARME-adults 10 6 19.5 ± .4.7 6 4
Hybrid n = 30
 4 Hybrid RME-Early adolescent (EA) 10 3-4 13.2 ± 1.2 4 6
 5 Hybrid RME-Late adolescents (LA) 10 5 15.5 ± 0.8 4 6
 6 Hybrid SARME-adults 10 6 19.4 ± 3.7 3 7
Total 60 15.7 ± 3.75 27 33

Inter-group comparisons between the tooth-borne and Hybrid expanders in the three growth stages as early adolescent, late adolescent and adult.

Early adolescent Late adolescent Adult
Tooth borne Hybrid Tooth borne Hybrid Tooth borne Hybrid
Mean SD Mean SD p Mean SD Mean SD p Mean SD Mean SD p
Skeletal measurements
 EMW_6 2.33 0.98 2.44 1.51 0.84 2.97 2.12 2.01 1.65 0.28 1.8 1.19 1.74 1.08 0.36
 EMW_4 4.70 0.99 4.64 1.41 0.91 5.15 2.39 3.66 1.67 0.13 3.82 1.84 3.97 1.01 0.84
 IMW_6 3.19 2.12 4.06 1.81 0.34 1.82 1.8 3.2 1.11 0.06 2.15 1.27 3.28 0.84 0.031*
 IMW_4 2.51 1.38 4.14 1.02 0.008** 3.41 1.45 3.29 1.2 0.84 3.23 1.22 4.62 1.61 0.052
 NW_6 2.76 1.12 3.64 1.14 0.09 2.82 1.35 2.22 1.16 0.31 1.47 0.58 2.38 0.7 0.006**
 NW_4 2.57 0.57 4.19 1.10 0.001** 2.03 1.68 2.85 0.96 0.22 1.49 1.08 2.16 0.91 0.15
Dental measurements
 BuAC_6 6.84 1.19 6.60 1.73 0.72 7.15 1.85 6.34 1.46 0.29 6.16 1.04 6.4 1.1 0.62
 BuCuW_6 6.92 1.03 7.5 1.45 0.31 8.94 1.74 7.75 1.65 0.13 7.25 1.77 6.85 1.16 0.59
 BuAC_4 6.92 1.25 5.92 1.83 0.17 7.03 2.65 4.88 1.29 0.035* 5.69 0.95 3.98 0.7 0.000***
 BuCuW_4 7.73 1.68 7.93 1.59 0.79 8.36 2.14 7.07 1.59 0.15 7.52 1.68 3.87 1.75 0.000***
 Inc_26 5.31 3.68 4.47 4.20 0.64 6.24 3.56 4.72 3.39 0.34 7.78 3.58 6.97 3.08 0.59
 Inc_24 6.38 3.88 2.98 3.29 0.06 6.94 2.62 4.39 5.84 0.25 5.80 3.10 -1.76 1.77 0.000***
 ACA_26 6.53 2.26 5.96 3.13 0.69 7.96 3.97 4.46 3.53 0.06 5.87 2.66 6.74 4.62 0.61
 ACA_24 9.41 6.60 −2.10 6.78 0.001** 12.26 5.18 −0.36 6.52 0.000*** 3.69 4.04 -1.54 3.99 0.011*
Periodontal measurements
 U4_CEJ10 −1.06 0.69 −0.11 0.61 0.005** −0.59 0.52 0.15 0.50 0.005** −0.43 0.58 −0.08 0.45 0.18
 U4_CEJ5 −0.75 0.41 −0.10 0.51 0.006** −0.82 0.60 −0.17 0.37 0.009** −0.56 0.37 0.06 0.46 0.005**
 U4_CEJ3 −0.95 0.25 0.03 0.56 0.001** −0.86 0.62 −0.33 0.49 0.049* −0.24 0.55 0.25 0.35 0.036*
 U6_CEJ10 −1.39 0.96 −0.45 0.69 0.030* −1.38 0.68 −0.30 0.41 0.001** −1.06 0.78 −0.29 0.47 0.032*
 U6_CEJ5 −0.98 0.39 −0.58 0.38 0.046* −1.05 0.53 −0.90 0.51 0.51 −0.70 0.58 −0.63 0.27 0.75
 U6_CEJ3 −0.69 0.45 −0.13 0.34 0.008** −0.65 0.70 −0.47 0.51 0.53 −0.74 0.42 −0.53 0.40 0.30

Maxillary skeletal, dental, nasal and buccal alveolar bone changes in Hybrid Group, for the three different growth stages.

Hybrid
Early adolescent Late adolescent Adult Early vs. late Adolescent Late Adolescent vs. Adult Adult vs. Early Adolescent
Mean SD Mean SD Mean SD p p p
Skeletal measurements
 EMW_6 2.44** 1.51 2.01** 1.65 1.74** 1.08 0.79 0.91 0.54
 EMW_4 4.64*** 1.41 3.66*** 1.67 3.97*** 1.01 0.29 0.89 0.56
 IMW_6 4.06*** 1.81 3.20*** 1.11 3.28*** 0.84 0.33 0.99 0.4
 IMW _4 4.14*** 1.02 3.29*** 1.20 4.62*** 1.61 0.32 0.07 0.69
 NW_6 3.64*** 1.14 2.22*** 1.16 2.38*** 0.70 0.033* 0.93 0.023*
 NW_4 4.19*** 1.10 2.85*** 0.96 2.16** 0.91 0.031* 0.25 0.001**
Dental measurements
 BuAC_6 6.60*** 1.73 6.34*** 1.46 6.40*** 1.10 0.92 0.99 0.95
 BuCuW_6 7.50*** 1.45 7.75*** 1.65 6.85** 1.16 0.93 0.41 0.62
 BuAC_4 5.92*** 1.83 4.88*** 1.29 3.98*** 0.70 0.33 0.16 0.022*
 BuCuW_4 7.93*** 1.59 7.07*** 1.59 3.87 1.75 0.48 0.001** 0.000***
 Inc_26 4.47* 4.20 4.72** 3.39 6.97*** 3.08 0.99 0.35 0.28
 Inc_24 2.98* 3.29 4.39*** 5.84 −1.76** 1.77 0.80 0.033* 0.004**
 ACA_26 5.96* 3.13 4.46** 3.53 6.74** 4.62 0.72 0.40 0.91
 ACA_24 −2.10 6.78 −0.36*** 6.52 −1.54 3.99 0.79 0.89 0.98
Periodontal measurements
 U4_CEJ10 −0.11 0.61 0.15 0.50 −0.08 0.45 0.54 0.64 0.99
 U4_CEJ5 −0.10 0.51 −0.17 0.37 0.06 0.46 0.94 0.54 0.75
 U4_CEJ3 0.03 0.56 −0.33 0.49 0.25 0.35 0.25 0.035* 0.59
 U6_CEJ10 −0.45 0.69 −0.30 0.41 −1.06 0.78 0.86 0.06 0.15
 U6_CEJ5 −0.58 0.38 −0.90 0.51 −0.63 0.27 0.23 0.35 0.96
 U6_CEJ3 −0.13 0.34 −0.47 0.51 −0.53 0.40 0.21 0.95 0.14
eISSN:
2207-7480
Lingua:
Inglese
Frequenza di pubblicazione:
Volume Open
Argomenti della rivista:
Medicine, Basic Medical Science, other
Feed RSS della rivista