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

Kayalar, Emre; Fıratli, Sonmez; Darendeliler, M. Ali; Dalci, Kerem; Dalci, Oyku

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

Australasian Orthodontic Journal

Volume 38 (2022): Issue 2 (July 2022)

By:

Emre Kayalar, Sonmez Fıratli, M. Ali Darendeliler, Kerem Dalci and Oyku Dalci

Open Access

|Nov 2022

Figures & Tables

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

Posterior linear and angular measurements in the coronal view.

Anterior linear and angular measurements in the coronal view.

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

DOI: https://doi.org/10.2478/aoj-2022.0036 | Journal eISSN: 2207-7480 | Journal ISSN: 2207-7472

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Language: English

Page range: 355 - 367

Submitted on: Apr 1, 2022

Accepted on: Sep 1, 2022

Published on: Nov 4, 2022

Published by: Australian Society of Orthodontists Inc.

In partnership with: Paradigm Publishing Services

Publication frequency: 1 issue per year

Related subjects:

Medicine,

Basic medical science,

Basic medical science, other

© 2022 Emre Kayalar, Sonmez Fıratli, M. Ali Darendeliler, Kerem Dalci, Oyku Dalci, published by Australian Society of Orthodontists Inc.
This work is licensed under the Creative Commons Attribution 4.0 License.

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

Figures & Tables

Figure 1.

Figure 2.

Figure 3.

Figure 4.

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

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

Measurements on CBCT scans_

Demographic characteristics of sample_

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

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

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