Frontal Sinus and Maxillary Growth Prediction In Class II Malocclusıons: Cephalometric Study Laser Applications in Pedodontics

Abstract

Sinuses are spaces that provide resonance to the voice, nasal drip, air warming, other special functions and contribute to midfacial growth and development. Frontal sinus is a pneumatic area that shows individual variability and located between external and internal laminas of the frontal bone. The aim of this study was to analyse the relationship between frontal sinus enlargement and maxillary growth during pubertal growth period in Class II malocclusion. This study was performed on 36 lateral cephalometric roentgenograms. The avarage observation period was 3,39 years range 12-16 years and all cases presented extension from pubertal growth spurt to the end of pubertal growth defined by the hand-wrist radiographic stages S-MP3cap Period I and MP3UDP3U Period II . Material was divided into two groups as Class I and Class II. Control material was consisted of Class I malocclusion. Periods and groups were compared with student’s t-test. Correlations between skeletal parameters and frontal sinus enlargement were analyzed. No correlation was found between skeletal parameters of Class II malocclusion and frontal sinus enlargement on lateral cephalometric roentgenograms. Results of this study demonstrated that, frontal sinus enlargement in Class II malocclusion is not a valuable indicator of excessive maxillary growth in different growth periods

Keywords

• Growth and development, Maxillofacial development, Frontal sinus, Angle Class II malocclusion

Sınıf II Maloklüzyonda Frontal Sinüs ve Maksiller Büyüme Tahmini: Sefalometrik Çalışma

Abstract

Sinüsler, ses rezonansı, nasal drenaj, havanın ısıtılması ve başka özel fonksiyonları yerine getiren orta yüzün büyümesine katkı sağlayan alanlardır. Frontal sinus, frontal kemiğin iç ve dış laminaları arasında yer alan ve bireysel değişkenlik gösteren pnömatik hava dolu alan, kavite alandır. Bu çalışmanın amacı, Sınıf II maloklüzyonlu bireylerde frontal sinüs büyümesi ve maksiller büyüme arasındaki ilişkiyi analiz etmektir. Çalışma, ortalama gözlem süresi 3,39 yıl olan hastalar 12-16 yaş arasında üzerinde pubertal büyüme atağından büyümenin bitimine kadar takip edilen 36 lateral sefalometrik grafi üzerinde yapılmıştır. Materyal Sınıf I ve Sınıf II olarak ayrılmış ve kontrol grubu Sınıf I bireylerden oluşturulmuştur. Frontal sinüs büyümesi el bilek grafilerindeki büyüme fazlarına göre S-MP3cap I. Periyot ve MP3U-DP3U II. Periyot olmak üzere iki periyotta değerlendirilmiştir. Sınıf II iskeletsel parametreleri ve frontal sinus yüksekliği ve genişliği arasında ilişki değerlendirilmiş; periyot ve gruplar student’s t-testi ile karşılaştırılmıştır.İskeletsel parametreler ile frontal sinus arasında ilişki olmadığı tespit edilmiştir. Frontal sinus büyümesinin maksiller büyüme için bir indikatör olmadığı sonucuna ulaşılmıştır

Keywords

• Büyüme ve gelişim, Maksillofasiyal gelişim, Frontal sinus, Angle Sınıf II maloklüzyon

References

1. Aydınlıoğlu A, Kavaklı A, Erdem S. Frontal sinus aplasia. Yensei. Med. J. 2003; 44: 215-218.
2. Baer MJ, Harris JE. A commentary on the growth of the human brain and skull. American Journal of Physical Anthropology 1969; 30: 39-44.
3. Björk A. Timing of interceptive or- thodontic measures based on stages of maturation. Trans Eur Orthod Soc 1972, 61-74.
4. Brown WAB, Molleson TI, Chinn S. Enlargement of the frontal sinus. Ann Hum Biol 1984; 11: 221-226.
5. Dolan KD Paranasal sinus radiology. Part 1A: Introduction and the frontal sinuses. Head and Neck Surgery 1982; 4: 301-311.
6. Enlow DH, Hans MG. Essential of fa- cial growth. 1st ed. Philadelphia, Saunders Co, 1996, 107-109.
7. Erturk N. Fernrontgenuntersuchungen tiber die Entwicklung der Stirnhohle, Fortschritte der Kiefer orthop. 1968; 29: 245-248.
8. Harris AM, Wood RE, Nortj ECJ, Thomas CJ. Gender and ethnic differ- ences of the radiographic image of the frontal region, J Forensic Odonto- stomatol 1987; 5: 51-57.

9. Hollinshead WH. Anatomy for sur- geons: Volume 1, 1st Ed. New York: Harper & Row and Weatherhill. 1966, 229-281.
10. Maresh MM. ParanasaI sinuses from birth to late adolescence. American Journal of Diseases of Children 1940; 60: 55-78.
11. McLaughlin RB, Rehl LM, Lanza DC. Clinically relevant frontal sinus anat- omy and physiology. Otolaryngol. Clin. North Am. 2001; 34: 1-22.
12. Moore KL. Clinically oriented anato- my. 3rd Ed. Baltimore: Williams & Wilkins. 1992, 760-762.
13. Moss ML, Salentijn L. The primary role of functional matrices in facial growth. 1969; 55: 566-577.
14. Nambiar P, Naidu MDK, Subrama- niam K. Anatomical variability of the frontal sinuses and their application in forensic identification. Clin. Anat. 1999; 12: 16-19.
15. Prossinger H. Sexually dimorphic on- togenetic trajectories of sinus cross- sections. Coll. Anthropol. 2001; 25: 1- 11.
16. Rossouw PE, Lombard CJ, Harris AM. The frontal sinus and mandibular growth prediction. Am J Orthod Den- tofacial Orthop. 1991; 100(6): 542- 546.
17. Ruf S, Pancherz H. Development of the frontal sinus in relation to somatic and skeletal maturity. A cephalometric roentgenographic study at puberty. European Journal of Orthod.1996; 18: 491-497.
18. Schaeffer JP. The genesis, develop- ment and adult anatomy of the naso- frontal region in man. Am. J. Anat 1916; 20: 125-145.
19. Shah RK, Dhingra, JK, Carter BL, Rebeiz EE. Paranasal sinus develop- ment: a radiographic study. Laryngo- scope 2003; 113: 205-209.
20. Shapiro R, Schorr S. A consideration of the systemic factors that influence frontal sinus pneumatization. Invest Radiol. 1980; 15: 191-202.
21. Szilvassy J. Development of the frontal sinus. Anthropol. Anz. 1981; 39: 138-149.
22. Waldeyer A, Mayet A. Anatomie des Menschen. Zweiter Teil. Walter de Gruyter Verlag, Berlin 1979.
23. Williams PL, Bannister LH, Berry MM, Collins P, Dyson M, Dussek JE, Ferguson MWJ. Gray’s Anatomy, 38th ed. London: Churchill Living- stone. 1995, 1635.
24. Williams PL, Warwick R, Dyson M, Bannister LH. (eds.) Gray’s anatomy, 37th Ed. London: Churchill Living- stone. 1989, 1177-1180.