pterygoid process
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Author(s):  
Younes Steffens ◽  
Serge-daniel Lebon ◽  
Normunds rungevics-kiselovs ◽  
Jamal Aitichou ◽  
Mihaela Horoi

We report the first published case of a mucocele found in a pneumatized pterygoid process (PPP) managed by endonasal endoscopic surgery. This case report highlights the difficulties that can arise from PPP during functional endoscopic sinus surgery (FESS) as the one encountered here


2021 ◽  
Vol 11 (12) ◽  
pp. 5450
Author(s):  
Stefan Ihde ◽  
Łukasz Pałka ◽  
Sławomir Jarząb ◽  
Maciej Janeczek ◽  
Karolina Goździewska-Harłajczuk ◽  
...  

This study evaluates the differences in the dimension, symmetry, and anatomical characteristic of the tubero–palato–pterygoid region in adults using 3D printed models. The objective of this study was also estimation of how many tubero–pterygoid implants can be placed safely with enough distance between threads of implants. The investigation draws on 57 models of upper jaws, including the adjacent pterygoid process of the sphenoid bone from randomly selected cases. The consecutive measurements (lateral, medial, rostral, caudal, area, line-1 longitudinal, and line-2 transverse) on both sides of the body—right (R) and left (L)—were used for the purpose of this study. Among the group of 57 cases were 30 females (F) and 27 males (M). A strong correlation was identified between lateral and line-1 longitudinal across the sample group of both male and female cases (p ≤ 0.05; r ≥ 0.9). Moreover, a strong correlation was noted between medial and line-1 longitudinal in the whole group of cases and in the male group (p ≤ 0.05; r ≥ 0.9). Lateral and line-1 longitudinal demonstrated a weak positive relationship with the age of the female cases (p ≤ 0.05; 0.03 < r < 0.05). Medial and line-1 longitudinal showed a weak negative relationship with the age of the male cases (p ≤ 0.05; −0.05 < r < −0.03). The results of this study suggest that, in most cases, two such tubero–pterygoid implants may be placed, which is a good advantage for support of implant-based bridges.


2020 ◽  
Vol 11 (1) ◽  
pp. 30
Author(s):  
Stefan Ihde ◽  
Łukasz Pałka ◽  
Sławomir Jarząb ◽  
Maciej Janeczek ◽  
Karolina Goździewska-Harłajczuk ◽  
...  

During pre-operation planning, an implantologist has to decide about the location of a dental implant based on the available bone, anatomical structures and future prosthetics. The aim of this study was to provide an overview of the configurations of the junction zone of the pterygoid process, maxillary tuberosity and pyramidal process among the population and to determine the usefulness of 3D model visualization in regard to precision of anatomical structure projections for clinical planning. A total of 72 cases were analyzed for seven measurements (lateral, medial, rostral, caudal, area, line-1 longitudinal, line-2 transverse) on both body sides—right (R) and left (L). In 57 cases, age and sex of the patient were given. In 15 cases this information was missing. Among the group of 57 cases with complete data, there were 30 females (F) and 27 males (M). A total of 57 models of upper jaws including the adjacent pterygoid process of the sphenoid bone were taken for investigation. The results of the comparison between the right and left side showed no differences (p > 0.05) in values of the measured parameters. The results of the comparison between males and females showed a statistically significant difference when assessing the line-2 transverse (p < 0.05)—in the male group the average was 8.22 mm, in the female group the average was lower (7.83 mm). No statistically significant differences in values of the measured parameters for females and males were found for the left side nor for the right side. In all examined specimens there was enough bone surface in the fusion zone to allow for the stable placement of one tuberopterygoid implant.


2020 ◽  
Vol 78 (12) ◽  
pp. 2258-2266
Author(s):  
Romain Nicot ◽  
Thomas Roland-Billecart ◽  
Alexandre Srouji ◽  
Florent Barry ◽  
Joël Ferri ◽  
...  

2020 ◽  
Vol 10 (38) ◽  
pp. 59-62
Author(s):  
Nitin Gupta ◽  
Madhur Kalia ◽  
Arjun Dass ◽  
Surinder K Singhal

AbstractBACKGROUND. Mucocele is a benign expansile cyst-like lesion seen in the paranasal sinuses, which has a tendency to expand and erode the surrounding sinus walls. These mucoceles develop as a result of obstruction of the sinus ostium and superadded infection. As such, the frontoethmoidal area is the most common site, followed by the maxillary sinus and the sphenoid sinus. Rarely, mucocele may also develop in abnormally aerated bones, such as middle turbinate (concha bullosa), clinoid process and pterygoid process.CASE REPORT. We report two infrequent cases of mucocele of concha bullosa, clinically presenting as the cause of nasal obstruction, which were completely removed endoscopically, and patients were symptomatically relieved.CONCLUSION. Mucocele of the middle turbinate represents a diagnostic challenge to surgeons both in terms of symptoms and risk of complications. Therefore, the condition should be considered as a possible cause of progressive nasal obstruction by otolaryngologists, and careful examination of the nasal cavity is necessary to determine the existence of this rare condition.


2019 ◽  
Vol 82 (4) ◽  
pp. 389-395
Author(s):  
Iulian Komarnitki ◽  
Hanna Mankowska-Pliszka ◽  
Ewa Ungier ◽  
Dawid Dziedzic ◽  
Michal Grzegorczyk ◽  
...  

Abstract The pterygoid hamulus (PH) is located in the infratemporal fossa and is part of the pterygoid process of the sphenoid bone. Its location on the cranial base and the multitude of anatomical structures whose attachments lie on the surface of the pterygoid hamulus make it of high functional and topographic significance. Due to insufficient literature on the PH morphometry, we decided to study this issue using modern and archaeological material. In total, 99 observations were subjected to quantitative and qualitative analysis (50 - from modern times and 49 - from medieval times). On the basis of the statistical analysis, statistically significant differences in the length of PH were found with respect to age and sex. Statistically significant differences in the PH width were also noticed with respect to sex and the period of origin. The results obtained may help better understand the development mechanism of the pterygoid hamulus bursitis.


2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Carmen Salinas-Goodier ◽  
Rosa Rojo ◽  
Jorge Murillo-González ◽  
Juan Carlos Prados-Frutos

Abstract The objective of this study was to analyze three-dimensionally the morphological characteristics of the pterygomaxillary region related to pterygoid implants. Volume, height, width and bone density were studied in relation to age, sex and dental status. This retrospective observational study analyzed the CBCT of 52 hemi-maxillas three-dimensionally (females n = 28, males n = 24; dentate = 31, edentulous = 21). Patients were exposed between September 2009 and October 2014, and data collection was performed between November 2015 and May 2016. Bone density, volume, height and width were analyzed in various locations of the maxilla and pterygoid process, and the variables age, gender and dental status patients were compared. The results show that the mean width of the pterygomaxillary joint was 7.5 mm (SD 1.00 mm), mean height was 12.51 mm (SD 1,82 mm) and mean volume was 321.7 mm3 (SD 142.02 mm3). Statistically significant differences between dentate and edentulous patients were found, showing a higher osseous density in dentate patients in the pterygoid process (758.2, SD 106.8, 95% CI 729.2 to 787.3 GSD - Gray Scale Density - compared to 689.9, SD 107.3, 95% CI 660.8 to 719.1 GSD; P = 0.022). In the maxilla, density was statistically significant lower in female subjects (571.0, SD 74.1, 95% CI 594.9 to 645.4 GSD) than in male subjects (620.2, SD 93.8, 95% CI 594.4 to 645.4 GSD, P = 0.047). In conclusion, due to the significant variation in the morphological characteristics of the pterygomaxillary region among subjects, personalized pre-surgical radiological assessment should always be performed. Gender, age and dental status are critical factors as they significantly affect bone density in this region.


2019 ◽  
Vol 10 (2) ◽  
pp. 232-243
Author(s):  
Pamela Rayara de Souza Oliveira ◽  
Reginaldo José Donatelli ◽  
Arthur Serejo Neves ◽  
Francisco Das Chagas Vieira Santos ◽  
Suely Silva Santos ◽  
...  

The species of the Ciconiidae family (Ciconiiformes), commonly known as storks, exhibit a cosmopolite distribution, being represented by swamp birds of medium and large size. The present work aimed to describe minutely and comparatively the cranial osteology of Leptoptilus species. The study was performed based on the description of cranial bones of the species Leptoptilus dubius, L. crumeniferus, and L. javanicus. The studied specimens were previously prepared (dry crania and mandibles). Among the studied characteristics, it was possible to observe some structures of systematic importance, such as the zygomatic process, the temporal fossa, the ectethmoid, the superior maxilla, the quadrate bone that interconnects the palate, the neurocranium, and the mandible, performing a key role in the work of cranial kinesis. Leptoptilus javanicus possesses, in the lateral portion of the cranium, an emargination of the rostrodorsal edge of the postorbital process, not observed in either Leptoptilus dubius or Leptoptilus crumeniferus. The fossa ventralis possesses a projection in the caudal extremities in L. dubius and L. crumeniferus, which is absent in L. javanicus. The transpalatine process is present in both L. dubius and L. crumeniferus and is absent in L. javanicus. The pterygoid process of the palatine is short in both L. dubius and L. crumeniferus, and long in L. javanicus. The ectethmoid is reduced in both L. dubius and L. javanicus, whereas in L. crumeniferus, besides being more developed, it presents a “U” shape. Based on the present study, L. dubius and L. crumeniferus are phylogenetically closer to each other than L. javanicus.


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