Transcript Periodontal and Periimplant Surgical Anatomy

Periodontal & Peri-implant
Surgical Anatomy
INTRODUCTION
Anatomy of the periodontium and the
surrounding hard and soft structures
Determine the scope and possibilities of
periodontal and implant surgical
procedures
MANDIBLE
Horseshoe-shape bone
Connected to skull with TMJ
Landmarks
 mandibular canal-IAN
 mental foramen
MANDIBLE Contd…
Mental nerve devide in to three br.
Paresthesia
MANDIBLE Contd…
.
A, Anterior view
 B, Occlusal view
MANDIBLE Contd…
Panoramic radiograph
MANDIBLE Contd…
Lingual view of the mandible
MANDIBLE Contd…
Occlusal view
external oblique ridge.
Arrows show the attachment of the
buccinator muscle.
MANDIBLE Contd…
occlusal view of the ramus and molars
 retromolar triangle area distal to the third
molar (arrows)
MANDIBLE Contd…
Lingual view
A, the inferior alveolar nerve
B, the lingual nerve
.
C, the attachment of the mylohyoid muscle inferiorly
MAXILLA
• Paired bone-Mx sinus&Nasal cavity
• Four processs
i)alveolar
ii)palatine
iii)zygomatic
iv)frontal
MAXILLA
Occlusal view
 incisive canal / anterior palatine foramen (red arrow)
 greater palatine foramen (blue arrows).
MAXILLA Contd…
Occlusolateral view of the palate
 nerves (red) and vessels (blue)
Incisive canal&papilla
greater palatine foramen
MAXILLA Contd…
Histologic frontal section
• vessels &nerve
• adipose & glandular tissue
MAXILLA Contd…
 Maxillary sinus. A, Frontal view. B, Lateral
view.
MAXILLA Contd…
Blood supply and innervation of the
maxillary sinus. A, Arterial blood supply.
B, Innervation of the maxillary sinus.
EXOSTOSES
Mandible

Lingual to canine & premolars above mylohyoid muscle
Maxilla

Midline of hardplate
EXOSTOSES Contd…
 Buccal exostosis in the maxillary arch
 Large midline palatal torus
MUSCLES
1, Nasalis;
2,Levator anguli oris
 3,Buccinator
4,Depressor anguli oris
5,Depressor labii inferioris
6,Mentalis.
ANATOMIC SPACES
 Canine fossa
 Buccal space
 Mental/Mentalis space
 Masticator space
 Sublingual space
 Submandibular space
ANATOMIC SPACES Contd..
Posterior view of the mandible
A.attachment of the mylohyoid muscles
B. geniohyoid muscles
C. sublingual gland
D. submandibular gland, which extends below and also to some extent above the
mylohyoid muscle
E.sublingual nerve
F. inferior alveolar nerve
MCQ-1
• Which of the following is responsible for
paresthesia of the lip during placement of
implant in lower jaw
(a)Trauma to the lingual nerve
(b)Trauma to the inferior alveolar nerve
(c)Trauma to the mental nerve
(d)Trauma to the palatine nerve
MCQ-2
• The following are the landmarks of
surgical importance of Mandible Except
(a)Mandibular foramen
(b)Mental foramen
(c)Incisive foramen
(d)Mylohyoid ridge
MCQ-3
• Which of the following space infection
leads to swelling of the upper
lip,obliterating the nasolabial fold and of
the upper and lower eyelids
(a)Buccal space
(b)Canine fossa
(c)Mental space
(d)Masticator space
MCQ-4
• Ludwig’s angina is a severe form of
infection that results in hardening of the
floor of the mouth and may lead to
asphyxiation from edema of the neck and
glottis.It is related with(a)Mentalis space
(b)Sub lingual space
(c)Submandibular space
(d)Submental space
MCQ-5
• Which of the following tooth is very close
to the maxillary antrum
(a)Third molar
(b)Second molar
(c)Premolar
(d)Canine