Breathing characteristics of individuals with
					dentofacial deformity

Prado, Daniela Galvão de Almeida; Nary Filho, Hugo; Berretin-Felix, Giédre; Brasolotto, Alcione Ghedini

doi:10.1590/1982-021620148113

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ORIGINAL ARTICLES • Rev. CEFAC 16 (4) • Jul-Aug 2014 • https://doi.org/10.1590/1982-021620148113 copy

Breathing characteristics of individuals with dentofacial deformity

Authorship SCIMAGO INSTITUTIONS RANKINGS

Purpose

comprehend the respiratory characteristics of individuals with dentofacial deformities and verify if there are differences comparatively to individuals with dentofacial balance.

Methods

participated 60 individuals (18 to 40 years old), 30 with a dentofacial deformities and 30 of a control group. The assessment of the Maximum Phonation Time for the emissions /a/, /i/, /u/, /s/, /z/ and the number counting was evaluated using the program Sound Forge (Sony); the vital capacity and pneumophonic coordination by the PonyFx spirometer. The results were compared by using the “t” Student test.

Results

the individuals with dentofacial deformities presented lower Maximum Phonation Time values than individuals with dentofacial balance in the emissions: “s” for those with skeletal Class II malocclusion and men; “z” for individuals with Class II malocclusion; number counting for men. The measures extracted by the spirometry were similar between the individuals with and without dentofacial deformities.

Conclusion

there were no differences regarding the vital capacity and pneumophonic coordination, but the dentofacial deformities group presented lower values of Maximum Phonation Time in the emissions that contain consonant phonemes.

Voice; Breathing; Spirometry; Jaw Abnormalities; Malocclusion

		Experimental group	Control group	p

		Mean (±sd)	Mean (±sd)
Total of individuals (n=44)	“a”	17.00(±5.45)	17.20(±5.19)	0.901
	“i”	17.75(±6.27)	17.27(±5.56)	0.852
	“u”	15.60(±6.52)	14.74(±3.77)	0.595
	“s”	13.67(±6.00)	16.25(±4.97)	0.122
	“z”	14.48(±6.59)	17.39(±6.82)	0.157
	“numbers”	18.41(±5.26)	20.32(±4.19)	0.190

females (n=26)	“a”	15.42(±4.98)	15.63(±3.58)	0.902
	“i”	16.49 (±6.39)	15.60 (±4.15)	0.677
	“u”	15.02(±7.05)	13.49(±3.73)	0.496
	“s”	14.27(±7.28)	15.30(±4.30)	0.664
	“z”	13.98 (±7.16)	14.77 (±3.79)	0.728
	“numbers”	18.21 (±4.77)	18.54 (±3.51)	0.842

males (n=18)	“a”	19.28(±5.55)	19.49(±6.46)	0.941
	“i”	19.58 (±5.96)	19.69 (±6.66)	0.971
	“u”	16.44 (±5.96)	16.54 (±3.20)	0.965
	“s”	12.80 (±3.68)	17.62 (±5.78)	0.049*
	“z”	15.21 (±6.00)	21.17 (±8.57)	0.106
	“numbers”	18.70 (±6.18)	22.90 (±3.87)	0.103

		Experimental group	Control group	p

		Mean (±sd)	Mean (±sd)
Class III (n=28)	“a”	17.88 (±5.32)	16.19 (±3.82)	0.343
	“i”	18.37 (±6.67)	16.62 (±4.28)	0.421
	“u”	16.47 (±7.84)	14.79 (±4.47)	0.501
	“s”	16.16 (±6.02)	16.03 (±4.89)	0.953
	“z”	17.28 (±6.71)	15.88 (±4.92)	0.534
	“numbers”	20.12 (±4.40)	19.84 (±4.39)	0.867

Class II (n=16)	“a”	15.45 (±5.67)	18.98 (±6.94)	0.284
	“i”	16.67 (±5.78)	18.42 (±7.52)	0.609
	“u”	14.08 (±3.02)	14.65 (±2.35)	0.679
	“s”	9.31 (±2.56)	16.63 (±5.42)	0.003*
	“z”	9.58 (±1.88)	20.04 (±9.05)	0.006*
	“numbers”	15.42 (±5.55)	21.18 (±3.95)	0.031*

		Experimental group	Control group	P

		Mean (±sd)	Mean (±sd)
Total of individuals (n=44)	VC mean (ml)	3.785(±1.02)	3.974 (±1.00)	0.536
	Phonation volume(ml)	4.191 (±1.51)	4.579 (±1.53)	0.399
	Phonation flow (ml/s)	0.266 (±0.12)	0.396 (±0.56)	0.417
	SPQ(ml/s)	0.235 (±0.08)	0.242 (±0.07)	0.759

Females (n=26)	VC mean (ml)	3.154 (±0.61)	3.236 (±0.43)	0.667
	Phonation volume(ml)	3.406 (±1.34)	3.581 (±0.84)	0.701
	Phonation flow (ml/s)	0.243 (±0.12)	0.239 (±0.06)	0.915
	SPQ(ml/s)	0.216 (±0.08)	0.217 (±0.05)	0.733

Males (n=18)	VC mean (ml)	4.696 (±0.56)	5.039 (±0.46)	0.178
	Phonation volume(ml)	5.324 (±0.90)	6.019 (±1.05)	0.148
	Phonation flow (ml/s)	0.298 (±0.11)	0.622 (±0.85)	0.273
	SPQ(ml/s)	0.262 (±0.08)	0.278 (±0.09)	0.713

		Experimental group	Control group	p

		Mean (±sd)	Mean (±sd)
Class III (n=28)	VC mean (ml)	3.859 (±0.91)	3.979 (±1.07)	0.750
	Phonation volume (ml)	4.128 (±1.56)	4.675 (±1.74)	0.386
	Phonation flow (ml/s)	0.250 (±0.12)	0.292 (±0.09)	0.902
	SPQ(ml/s)	0.227 (±0.08)	0.244 (±0.07)	0.274

Class II (n=16)	VC mean (ml)	3.654 (±1.10)	3.965 (±0.95)	0.543
	Phonation volume (ml)	4.30 (±1.51)	4.41 (±1.14)	0.871
	Phonation flow (ml/s)	0.29 (±0.10)	0.58 (±0.93)	0.395
	SPQ(ml/s)	0.25 (0.07)	0.24 (±0.07)	0.779

ABRAMO Associação Brasileira de Motricidade Orofacial Rua Uruguaiana, 516, Cep 13026-001 Campinas SP Brasil, Tel.: +55 19 3254-0342 - São Paulo - SP - Brazil
E-mail: revistacefac@cefac.br

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