Involvement of the maxillary sinus ostium (MSO) in the edematous processes after sinus floor augmentation: a cone-beam computed tomographic study

Abstract Background After sinus floor augmentation, a thickening of the sinus mucosa has been described. The aim of the present study was to evaluate the involvement of the maxillary sinus ostium in the edematous processes after a sinus floor augmentation procedure. Methods Seventy-two cone-beam com...

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Main Authors: Shigeru Sakuma, Mauro Ferri, Hideki Imai, Natalia Fortich Mesa, Daniel José Blanco Victorio, Karol Alí Apaza Alccayhuaman, Daniele Botticelli
Format: Article
Language:English
Published: SpringerOpen 2020-09-01
Series:International Journal of Implant Dentistry
Subjects:
Online Access:http://link.springer.com/article/10.1186/s40729-020-00233-7
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author Shigeru Sakuma
Mauro Ferri
Hideki Imai
Natalia Fortich Mesa
Daniel José Blanco Victorio
Karol Alí Apaza Alccayhuaman
Daniele Botticelli
author_facet Shigeru Sakuma
Mauro Ferri
Hideki Imai
Natalia Fortich Mesa
Daniel José Blanco Victorio
Karol Alí Apaza Alccayhuaman
Daniele Botticelli
author_sort Shigeru Sakuma
collection DOAJ
description Abstract Background After sinus floor augmentation, a thickening of the sinus mucosa has been described. The aim of the present study was to evaluate the involvement of the maxillary sinus ostium in the edematous processes after a sinus floor augmentation procedure. Methods Seventy-two cone-beam computerized tomographies (CBSTs) were taken before sinus floor augmentation and after 1 week and 9 months from surgery and analyses. Sinus mucosa thickness and area, ostium diameter and patency, and extension of the post-surgical transient mucosal thickening in relation to the ostium were evaluated on the CBCTs for all three periods. The term “virtual” when referring to sinus mucosa thickness and area was introduced because of the edema and bleeding that both contributed to a transient thickening and additional elevation of the sinus mucosa. Results The mean virtual thickness of the sinus mucosa was 2.7 ± 4.0 mm, 7.7 ± 7.1 mm, 1.7 ± 2.0 mm before surgery, and after 1 week and 9 months. The virtual mucosa area was 37.2 ± 52.5 mm2, 184.5 ± 153.8 mm2, and 34.0 ± 50.7 mm2. The ostium diameter at the three periods evaluated was 1.8 ± 0.5 mm, 1.1 ± 0.6 mm, 1.5 ± 0.8 mm, respectively. Three infundibula (4.2%) were found out of patency before surgery while this number increased to 14 (19.4%) after 1 week. Nine months after surgery, only one infundibulum (1.4%) was out of patency, however, without presenting signs of sinus pathologies. The extension of the mucosal edema on the palatal sinus was reduced after 9 months of healing. Conclusions One week after sinus floor augmentation, the maxillary sinus mucosa increased in dimensions and in several cases involved the ostium, reducing its diameter and producing a transient loss of patency. After 9 months of healing, the initial conditions were recovered.
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spelling doaj.art-9ea1bb8c038a4dfd9f6915197c6d3ef32022-12-22T00:48:37ZengSpringerOpenInternational Journal of Implant Dentistry2198-40342020-09-01611910.1186/s40729-020-00233-7Involvement of the maxillary sinus ostium (MSO) in the edematous processes after sinus floor augmentation: a cone-beam computed tomographic studyShigeru Sakuma0Mauro Ferri1Hideki Imai2Natalia Fortich Mesa3Daniel José Blanco Victorio4Karol Alí Apaza Alccayhuaman5Daniele Botticelli6ARDEC AcademyARDEC FoundationARDEC AcademyCorporación Universitária Rafael NúñezUniversidad Peruana Cayetano HerediaARDEC AcademyARDEC AcademyAbstract Background After sinus floor augmentation, a thickening of the sinus mucosa has been described. The aim of the present study was to evaluate the involvement of the maxillary sinus ostium in the edematous processes after a sinus floor augmentation procedure. Methods Seventy-two cone-beam computerized tomographies (CBSTs) were taken before sinus floor augmentation and after 1 week and 9 months from surgery and analyses. Sinus mucosa thickness and area, ostium diameter and patency, and extension of the post-surgical transient mucosal thickening in relation to the ostium were evaluated on the CBCTs for all three periods. The term “virtual” when referring to sinus mucosa thickness and area was introduced because of the edema and bleeding that both contributed to a transient thickening and additional elevation of the sinus mucosa. Results The mean virtual thickness of the sinus mucosa was 2.7 ± 4.0 mm, 7.7 ± 7.1 mm, 1.7 ± 2.0 mm before surgery, and after 1 week and 9 months. The virtual mucosa area was 37.2 ± 52.5 mm2, 184.5 ± 153.8 mm2, and 34.0 ± 50.7 mm2. The ostium diameter at the three periods evaluated was 1.8 ± 0.5 mm, 1.1 ± 0.6 mm, 1.5 ± 0.8 mm, respectively. Three infundibula (4.2%) were found out of patency before surgery while this number increased to 14 (19.4%) after 1 week. Nine months after surgery, only one infundibulum (1.4%) was out of patency, however, without presenting signs of sinus pathologies. The extension of the mucosal edema on the palatal sinus was reduced after 9 months of healing. Conclusions One week after sinus floor augmentation, the maxillary sinus mucosa increased in dimensions and in several cases involved the ostium, reducing its diameter and producing a transient loss of patency. After 9 months of healing, the initial conditions were recovered.http://link.springer.com/article/10.1186/s40729-020-00233-7Maxillary sinusCone-beam computed tomographySinus mucosaSchneiderian membraneMaxillary sinus ostium
spellingShingle Shigeru Sakuma
Mauro Ferri
Hideki Imai
Natalia Fortich Mesa
Daniel José Blanco Victorio
Karol Alí Apaza Alccayhuaman
Daniele Botticelli
Involvement of the maxillary sinus ostium (MSO) in the edematous processes after sinus floor augmentation: a cone-beam computed tomographic study
International Journal of Implant Dentistry
Maxillary sinus
Cone-beam computed tomography
Sinus mucosa
Schneiderian membrane
Maxillary sinus ostium
title Involvement of the maxillary sinus ostium (MSO) in the edematous processes after sinus floor augmentation: a cone-beam computed tomographic study
title_full Involvement of the maxillary sinus ostium (MSO) in the edematous processes after sinus floor augmentation: a cone-beam computed tomographic study
title_fullStr Involvement of the maxillary sinus ostium (MSO) in the edematous processes after sinus floor augmentation: a cone-beam computed tomographic study
title_full_unstemmed Involvement of the maxillary sinus ostium (MSO) in the edematous processes after sinus floor augmentation: a cone-beam computed tomographic study
title_short Involvement of the maxillary sinus ostium (MSO) in the edematous processes after sinus floor augmentation: a cone-beam computed tomographic study
title_sort involvement of the maxillary sinus ostium mso in the edematous processes after sinus floor augmentation a cone beam computed tomographic study
topic Maxillary sinus
Cone-beam computed tomography
Sinus mucosa
Schneiderian membrane
Maxillary sinus ostium
url http://link.springer.com/article/10.1186/s40729-020-00233-7
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