Does vertical pattern affect lip strain in open-bite patients?: A cephalometric study

Yıl 2024, , 115 - 125, 30.08.2024

Ece Başal , Yasemin Bahar Acar , Buket Erdem

https://doi.org/10.30569/adiyamansaglik.1438517

Öz

Aim: To examine effect of skeletal pattern on lip strain in open-bite, in individuals with normal and increased vertical pattern.
Materials and Methods: 56 open bite patients with Normovergent (NG) and Hyperdivergent (HG) vertical patterns (Mean age: 16.57 years) underwent cephalometric analysis. Soft tissue labial, hard tissue, and dental inclinations were measured. Statistical analyses were performed using Kolmogorov Smirnov, Mann Whitney-U, and independent sample t-tests; Pearson and Spearman correlation analyses; and Linear regression analysis.
Results: In HG, each degree of SN-UOP increase caused 0.371 mm increase in lower lip strain. While in NG, upper lip strain was associated with IMPA and SNB (each degree caused 0.14 mm increase and 0.207 mm decrease respectively).
Conclusion: IMPA, SN-UOP and SNB were found to be the determinants of lip strain. Dental, vertical, and sagittal variables showed association with lower face.

Anahtar Kelimeler

Open bite, Cephalometry, Vertical dimension

Etik Beyan

Ethics committee approval was obtained from Medical School Ethical Committee of Clinical Studies of the Marmara University (Protocol no 09.2023.1253; 08/02/2024). The study conformed to the principles of Helsinki Declaration.

Destekleyen Kurum

There is no person/organization that financially supports this study.

Teşekkür

None.

Açık kapanış hastalarında dik yön gelişimi dudak gerilimini etkiler mi?

Öz

Amaç: Bu çalışmada açık kapanışlı bireylerde dik yön paterninin dudak gerginliği üzerine etkisinin, normal ve artmış dik yön paternine sahip bireylerle karşılaştırmalı olarak incelenmesi amaçlanmıştır.
Gereç ve Yöntem: Normoverjan (NG) ve Hiperdiverjan (HG) dik yön paternlerine sahip (Ortalama yaş: 16,57 yıl) 56 açık kapanış hastasının lateral sefalometrik röntgenleri analiz edilmiş, hastaların yumuşak doku, sert doku ve dental eğimleri ölçülmüştür. İstatistiksel analizler Kolmogorov-Smirnov, Mann Whitney-U ve bağımsız örneklem t-testleri; Pearson ve Spearman korelasyon analizleri; ve doğrusal regresyon analizi kullanılarak gerçekleştirilmiştir.
Bulgular: HG'de her derece SN-UOP artışı alt dudak geriliminde 0,371 mm artışa neden olmuştur. NG'de ise üst dudak gerilimi IMPA ve SNB ile ilişkili bulunmuştur (Her bir derece artış, sırasıyla 0,14 mm artış ve 0,207 mm azalmaya neden olmuştur).
Sonuç: IMPA, SN-UOP ve SNB'nin dudak geriliminin belirleyicileri olduğu düşünülmektedir. Dental, vertikal ve sagital parametreler alt yüz ile ilişkili bulunmuştur.

Anahtar Kelimeler

Açık kapanış, Sefalometri, Dikey boyut

Etik Beyan

İlgili üniversitenin Tıp Fakültesi Etik Kurulu’ndan etik kurul izni alınmıştır. (Protokol no 09.2023.1253)

Destekleyen Kurum

-

Teşekkür

-

Kaynakça

• Arat ZM, Akcam MO, Esenlik E, Arat FE. Inconsistencies in the differential diagnosis of open bite. Angle Orthod. 2008;78(3):415-420. doi:10.2319/021907-80.1
• Sandler PJ, Madahar AK, Murra A. Anterior open bite: aetiology and management. Dent update. 2011;38(8):522-532. doi:10.12968/denu.2011.38.8.522
• Lin LH, Huang GW, Chen CS. Etiology and treatment modalities of anterior open bite malocclusion. J Exp Clin Med. 2013;5(1):1-4. doi:10.1016/j.jecm.2013.01.004
• Pakshir H, Fattahi H, Jahromi SS, Baghdadabadi NA. Predominant dental and skeletal components associated with open-bite malocclusion. J World Fed Orthod. 2014;3(4):169-173. doi:10.1016/j.ejwf.2014.08.002
• Shenoy U, Hazarey P, Akhare PJ, Mute BK. Cephalometric appraisal of tongue and related soft tissues in normal and open bite subjects at rest. J Clin Diagn Res. 2015;9(1):ZC16. doi:10.7860/JCDR/2015/7647.5456
• Sassouni V. A classification of skeletal facial types. Am J Orthod. 1969;55(2):109-123. doi:10.1016/0002-9416(69)90122-5
• Subtelny JD, Sakuda M. Open-bite: diagnosis and treatment. Am J Orthod. 1964;50(5):337-358.
• Sassouni V, Nanda S. Analysis of dentofacial vertical proportions. Am J Orthod. 1964;50(11):801-823. doi:10.1016/0002-9416(64)90039-9
• Cangialosi TJ. Skeletal morphologic features of anterior open bite. Am J Orthod. 1984;85(1):28-36. doi:10.1016/0002-9416(84)90120-9
• Skieller V, Björk A, Linde-Hansen T. Prediction of mandibular growth rotation evaluated from a longitudinal implant sample. Am J Orthod. 1984;86(5):359-370. doi: 10.1016/s0002-9416(84)90028-9
• Karlsen AT. Association between facial height development and mandibular growth rotation in low and high MP-SN angle faces: a longitudinal study. Angle Orthod. 1997;67(2):103-110. doi:10.1043/0003-3219(1997)067<0103:ABFHDA>2.3.CO;2
• Betzenberger D, Ruf S, Pancherz H. The compensatory mechanism in high-angle malocclusions: a comparison of subjects in the mixed and permanent dentition. Angle Orthod. 1999;69(1):27-32. doi:10.1043/0003-3219(1999)069<0027:TCMIHA>2.3.CO;2
• Fields HW, Proffit WR, Nixon W, Phillips C, Stanek E. Facial pattern differences in long-faced children and adults. Am J Orthod. 1984;85(3):217-223. doi:10.1016/0002-9416(84)90061-7
• Choi YJ, Suh H, Park JJ, Park JH. Anterior open bite correction via molar intrusion: Diagnosis, advantages, and complications. J World Fed Orthod. 2024;13(1):2-9. doi:10.1016/j.ejwf.2023.12.006
• Park YC, Lee HA, Choi NC, Kim DH. Open bite correction by intrusion of posterior teeth with miniscrews. Angle Orthod. 2008;78(4):699-710. doi:10.2319/0003-3219(2008)078[0699:OBCBIO]2.0.CO;2
• De Oliveira JML, Dutra ALT, Pereira CM, De Toledo OA. Etiology and treatment of anterior open bite. J Health Sci Inst. 2011;29:92-95.
• Proffit WR, Fields HW, Larson B, Sarver DM. Contemporary orthodontics. 6th ed. Amsterdam: Elsevier Health Sciences; 2018.
• Lee YJ, Park JT, Cha JY. Perioral soft tissue evaluation of skeletal Class II Division 1: A lateral cephalometric study. Am J Orthod Dentofacial Orthop. 2015;148(3):405-413. doi:10.1016/j.ajodo.2015.03.033
• Vaden JL, Pearson LE. Diagnosis of the vertical dimension. Semin Orthod. 2002;120-129. doi:10.1053/sodo.2002.125431
• Dixit UB, Shetty RM. Comparison of soft-tissue, dental, and skeletal characteristics in children with and without tongue thrusting habit. Contemp Clin Dent. 2013;4(1):2. doi:10.4103/0976-237X.111585
• Arnett GW, Jelic JS, Kim J, et al. Soft tissue cephalometric analysis: Diagnosis and treatment planning of dentofacial deformity. Am J Orthod Dentofacial Orthop. 1999;116:239-53. doi:10.1016/s0889-5406(99)70234-9
• Burford D, Noar JH. The causes, diagnosis and treatment of anterior open bite. Dent update. 2003;30(5):235-241. doi:10.12968/denu.2003.30.5.235
• Takada K. Tongue posture at rest: an electromyographic and cephalometric appraisal. J Osaka Univ Dent Sch. 1985;25:139-151.
• Kim YH, Han UK, Lim DD, Serraon MLP. Stability of anterior openbite correction with multiloop edgewise archwire therapy: a cephalometric follow-up study. Am J Orthod Dentofacial Orthop. 2000;118(1):43-54. doi:10.1067/mod.2000.104830
• Hassan AH, Turkistani AA, Hassan MH. Skeletal and dental characteristics of subjects with incompetent lips. Saudi Med J. 2014;35(8):849-854.
• Smatt V. Labial incompetence. Therapeutic considerations of esthetic and functional deficits. Orthod Fr. 1991;62:611-624.