2. • ANATOMY OF THE MAXILLARY SINUS
• MEDICATION
• SINUS FLOOR ELEVATION PROCEDURES
• POST SURGICAL INSTRUCTIONS
• COMPLICATIONS
• REVIEW OF THE LITERATURE
PRESENTATION OUTLINE
3. ANATOMY OF THE MAXILLARY SINUS
• Pyramidal in shape
• Apex pointed towards the zygomatic bone
• Volume in an adult ≈15ml (range 9ml to 20ml)
BASE- lateral wall of nose
• (≈33mm X 33mm)
• Base to apex ≈ 23mm
• Sinus ostium is placed high and is in an
unfavourable position for gravity dependent
drainage
4. ANATOMY OF THE MAXILLARY SINUS
SUPERIOR WALL- floor of the orbit
• Infraorbital nerves and vessels
POSTERIOR WALL
• internal maxillary artery,
• pterygoid plexus,
• sphenopalatine ganglion
• greater palatine nerve
FLOOR- alveolar process of the maxilla
LATERAL WALL-facial surface of the maxilla
• infraorbital foramen
• thickness ranges from 0.5 to 2.5mm
5. • Also known as Underwood’s septa
• Almost 30% of dentate maxilla have septa
• 75% appearing in the premolar region.
• Complete septa are very rare (1%)
• Primary septa are developmental
• Secondary septa are caused by irregular
pneumatisation following loss of posterior
teeth
SEPTA
6. • Mucosal lining of the sinus
• Pseudo-stratified columnar ciliated
respiratory epithelium covering a thin layer of
connective tissue
• 0.45 to 1.40mm in thickness
• Considered normal if less than 4mm
Increased thickness associated with
• thick gingival biotype
• chronic sinus inflammation
• smoking
SCHNEIDERIAN MEMBRANE
7. VASCULAR SUPPLY
Anastomosis
• Infraorbital
• posterior superior alveolar artery.
• posterior lateral nasal (medial aspect of the sinus).
The formation of the intraosseous and extraosseous
anastomoses is termed the double arterial arcade.
8. Coronal
sections
The intraosseous branch of the posterior superior alveolar artery most
frequently runs through a bony groove inside the lateral wall of the maxillary
sinus.
Rarely the artery may run within a bony canal.
Hur MS et al., 2009. Clinical implications of the topography and distribution of the posterior superior
alveolar artery. J Craniofac Surg.
9. The courses of the intra osseous branch of the posterior superior alveolar artery
Straight (78.1%)
U-shaped (21.9%)
Hur MS et al., 2009. Clinical implications of the topography and distribution of the posterior superior
alveolar artery. J Craniofac Surg.
10. Mean and range values of the height of the IObr of the PSAA from the CEJ in mm.
The minimum mean height from the
cervix to the IObr
• 21.1mm in the first molar region
• 26.9mm in the first premolar region
More precautions should be taken at
the first molar region than the first
premolar region.
Hur MS et al., 2009. Clinical implications of the topography and distribution of the posterior superior
alveolar artery. J Craniofac Surg.
12. ABSOLUTE LOCAL CONTRAINDICATIONS
• local aggressive benign tumours
• malignant tumours
• large maxillary cysts
• acute sinusitis
• allergic rhinitis
13. RATIONALE FOR ANTIBIOTIC PROPHYLAXIS
• Endoscopically normal sinuses were shown to be non sterile
• Most common bacteria
• Streptococcus viridans
• Staphylococcus epidermidis
• Streptococcus pneumonia
• Sinus graft procedure often violate the sinus mucosa and bacteria may
contaminate the graft site
RATIONALE FOR ANTIBIOTIC IN THE GRAFT
• the bone graft is a dead space prone to infection
• systemic antibiotic drugs do not enter the area until revascularization
14. Systemic antibiotic prophylaxis
No allergy to penicillin
Augmentin 825mg/125mg.
One tablet twice daily starting 1 day before/ 5 days after
Non anaphylactic allergy to penicillin
Cefuroxime axetil 500mg. (Cephalosporin)
One tablet twice daily starting 1 day before/ 5 days after
Anaphylactic reaction to penicillin
Levofloxacin 500mg. (Fluoroquinolone)
One tablet starting 1 day before/ 5 days after
Misch CE. Contemporary Implant Dentistry 3rd Ed. 2008
15. Antibiotic in graft
Cefazolin (1gm) dilute with 2ml saline (cephalosporin)
100mg add to collagen membrane
400mg add to graft material
Clindamycin 150mg/1ml
30mg add to collagen membrane
120mg add to graft material
Capsules and tablets should not be used as they contain fillers that are not conducive
to osteogenesis.
Misch CE. Contemporary Implant Dentistry 3rd Ed. 2008
16. Glucocorticoid medication
Dexamethazone (4mg)
Two tablets in the morning the day before and day of surgery
One tablets in the morning for 2 days after surgery
Decongestant medication
Oxymetazoline 0.05% (Vicks)
Analgesic medication
Analgesic containing codeine as codeine is a potent antitussive.
Cryotherapy
Ice or cold dressings for the 24 to 48 hours
Then heat applied to increase blood and lymph flow
Misch CE. Contemporary Implant Dentistry 3rd Ed. 2008
18. HISTORY
1980: Boyne and James reported on elevation of the maxillary sinus floor in
patients with large, pneumatized sinus cavities as a preparation for the
placement of blade implants.
Boyne, P. J. & James, R. A. (1980) Grafting of the maxillary sinus floor with autogenous
marrow and bone. Journal of Oral Surgery 38, 613–616.
1994: Summers described a crestal approach, using tapered osteotomes with
increasing diameters.
Summers, R. B. (1994) A new concept in maxillary implant surgery: the osteotome
technique. Compendium 15, 152–154–156, 158 passim; quiz 162.
19. ATROPHIC POSTERIOR MAXILLA
Favourable interarch relationship
Insufficient bone height for standard implant
Vertical bone height
≤6mm or oblique sinus
floor
Lateral window
technique
Vertical bone height
>6mm and horizontal
sinus floor
Transcrestal
TREATMENT GUIDELINES- INTERNATIONAL TEAM FOR IMPLANTOLOGY (ITI)
20. LATERAL WINDOW TECHNIQUES
Modified Caldwell-Luc approach (Tatum)
Ultrasonic ostectomy (Torella)
Piezoelectric bony window osteotomy (Vercellotti et al)
Trephine (Emtiaz)
Antral membrane balloon elevation ( Soltan and Smiler)
Other variations
Hinge osteotomy
Elevated osteotomy
Crestal osteotomy
TRANSCRESTAL APPROACH TECHNIQUES
Osteotome technique (Summers)
Modified osteotome technique (Davarpanah et al 1996)
Hydraulic pressure- saline (Sotirakis and Gonshor)
SINUS FLOOR ELEVATION TECHNIQUES
21. LATERAL WINDOW APPROACH
Katsuyama H., Jensen SS. ITI Treatment Guide. Volume 5. 2011
Handling the cortical bone
1. fracture the cortical
bony plate like a trap-
door and use it as the
new sinus floor, leaving
it attached to the
underlying mucosa.
2. removal of the cortical
bone and use it as the
new sinus floor- elevated
osteotomy
3. removal of the bone by
thinning it out.
4. remove the cortical bony
plate and replace it on
the lateral aspect of the
graft at the end of the
grafting procedure.
22. LATERAL WINDOW APPROACH
Pjetursson BE., Lang NP. Clinical Periodontology and implant Dentistry. 2008
Removal of cortical bone
1. Round bur
2. Ultrasonic instruments
3. Piezoelectric
4. Trephine
23. LATERAL WINDOW APPROACH- ANTRAL MEMBRANE BALLOON ELEVATION
Soltan M., Smiler DG. Antral membrane balloon elevation. Journal of oral Implantology. 2005
24. TRANSCRESTAL APPROACH- SUMMERS TECHNIQUE
Pjetursson BE., Lang NP. Clinical Periodontology and implant Dentistry. 2008
X
Larger
diameter
osteotomes
25. TRANSCRESTAL APPROACH- MODIFIED SUMMERS TECHNIQUE
Davarpanah M et al., 2011. The Modified Osteotome Technique. Int J Periodont Rest Dent
27. Do not blow your nose
Do not use tobacco
Do not drink with a straw
Do not lift or pull up the lip to look at the sutures
Sneeze with the mouth open
Notify the office if
• you feel granules in your nose
POSTOPERATIVE INSTRUCTIONS
28. INTRA-OPERATIVE COMPLICATIONS
1. Sinus membrane perforation (10 to 20%)
2. Excessive bleeding (bony window/ sinus membrane/wound dehiscences)
3. Injury of the infraorbital neurovascular bundle
4. Implant migration
5. Hematoma
6. Adjacent tooth sensitivity
POST-OPERATIVE COMPLICATIONS
1. Infection of the grafted sinus (3-7 days post-op) (3%).
2. Sinusitis
COMPLICATIONS
29. Confounding factors
Study design
Patient factors (age, gender, health, SES, hygiene…..
Operator factors (experience, techniques…..
Regenerative material properties
Follow up period
Implant properties
LITERATURE REVIEW
Up to 1996?? Currently used
30. 4th ITI Consensus conference on
Sinus Floor Elevation Procedures, 2008
ITI Treatment Guide (Volume 5)
Review published 2011 with updated literature
Jensen SS.
LITERATURE REVIEW
31. LITERATURE REVIEW
Jensen SS. 4th ITI Consensus conference: Sinus Floor Elevation Procedures, 2008 in ITI Treatment Guide 2011
Technique Study characteristics Implant survival
Lateral window
technique
85 studies, 4807 patients,
14944 implants,
after 12 to 107 months loading
Machined implant surfaces:
61.2% to 100%
Rough surface implants:
88.6% to 100%
Transcrestal
technique
18 studies, 1096 patients,
1744 implants,
after 12 to 64 months loading
83% to 100%
32. LITERATURE REVIEW
Jensen SS. 4th ITI Consensus conference: Sinus Floor Elevation Procedures, 2008 in ITI Treatment Guide 2011
Lateral window
technique
Study characteristics Implant survival
Bone substitute
only
19 studies,740 patients,
2481 implants,
after 12 to 107 months loading
82% to 100%
Excluding smooth surface
88.6% to 100%
Autograft only
or combined
with bone
substitute
36 studies,1210 patients,
4218 implants,
after 12 to 107 months of loading
61.2% to 100%
Excluding smooth surface
96% to 100%
33. LITERATURE REVIEW
Jensen SS. 4th ITI Consensus conference: Sinus Floor Elevation Procedures, 2008 in ITI Treatment Guide 2011
Lateral window technique Implant survival
Deproteinised bovine bone mineral (DBBM) 85% to 100%
Deproteinised bovine bone mineral (DBBM) and autograft 89% to 100%
Autologous block grafts (iliac crest)- simultaneous 61.2% to 92.2%
Autologous block grafts (iliac crest)- staged 76.9% to 94.4%
Hydroxyapatite (alloplast) 96% to 100%
Demineralized Freeze Dried Bone allograft and DBBM 82.1% to 96.8%
Without grafting material* 97.7% to 100%
* Three case series, implants acted as tent poles allowing the coagulum to occupy the space
34. LITERATURE REVIEW
Jensen SS. 4th ITI Consensus conference: Sinus Floor Elevation Procedures, 2008 in ITI Treatment Guide 2011
Lateral window technique Implant survival Implant survival
Excluding smooth
surface
Membrane over the lateral window 92% to 100% 92% to 100%
Without the use of a membrane 61.2% to 100% 93% to 100%
35. LITERATURE - TRANSCRESTAL TECHNIQUE
Jensen SS. 4th ITI Consensus conference: Sinus Floor Elevation Procedures, 2008 in ITI Treatment Guide 2011
Transcrestal technique Study characteristics Implant survival
Without grafting material 8 studies, 249 patients, 443 implants
after 12 to 36 months of loading
91.4% to 100%
Deproteinised bovine
bone mineral (DBBM)
4 studies, 122 patients, 195 implants
after 12 to 45 months of loading
95% to 100%
Autologous bone 2 studies?, 489 patients, 771 implants
after 20 to 54 months of loading
93.8% to 97.8%
36. • Maxillary sinus elevation is a predictable technique.
• Autogenous bone grafts were considered the gold standard – now allografts with
particulate autografts are associated with better implant survival rates (Esposito et
al., 2006).
• Rough surface implants have more favourable clinical outcomes.
• Simultaneous and delayed give equivalent results.
CONCLUSION
Jensen SS., Katsuyama H., 2011. ITI Treatment guide. Volume 5. Sinus floor elevation procedures.
Testori T et al., 2009. maxillary sinus surgery and alternatives in treatment.
The distance of the intraosseous posterior superior artery to the alveolar crest is 16 to 19mm
The distance of the intraosseous posterior superior artery to the alveolar crest is 16 to 19mm
Found in the body of the maxilla, this sinus has three recesses: an alveolar recess pointed inferiorly, bounded by the alveolar process of the maxilla; a zygomatic recess pointed laterally, bounded by the zygomatic bone; and an infraorbital recess pointed superiorly, bounded by the inferior orbital surface of the maxilla.
The distance of the intraosseous posterior superior artery to the alveolar crest is 16 to 19mm
Found in the body of the maxilla, this sinus has three recesses: an alveolar recess pointed inferiorly, bounded by the alveolar process of the maxilla; a zygomatic recess pointed laterally, bounded by the zygomatic bone; and an infraorbital recess pointed superiorly, bounded by the inferior orbital surface of the maxilla.
Within the anterior wall and ≈6-7 mm (up to 14mm) from the orbital rim is the infraorbital foramen.
The infraorbital nerve runs along the superior wall of the sinus and exits through the foramen. The infraorbital blood vessels and nerves lie directly on the superior wall of the interior and within the sinus mucosa.
Located in the superior aspect of the medial wall is the maxillary or primary ostium through which the sinus drains its secretions (ciliary action) via the ethmoid infundibulum through the hiatus semilunaris into the middle meatus of the nasal cavity.
The lateral wall maybe less than a mm in edentulous patients. The thickness ranges from 0.5 to 2.5mm and is thicker in males. The lateral wall houses an endosseous anastomosis of the infraorbital and the posterior superior alveolar artery.
The inferior wall is ≈ at the level of the nasal floor in dentate patients but often 1cm lower in the edentulous posterior maxilla.
Considered normal if less than 4mm Cakur, Sumbullu 2011
A posterior lateral nasal artery (a branch of the sphenopalatine artery that also rises from the maxillary artery) also supplies the region from the medial aspect of the sinus
Tid three times daily
Qd- once
Bid twice
There are three main classifications of anaphylaxis. Anaphylactic shock is associated with systemic vasodilation that causes low blood pressure which is by definition 30% lower than the person's baseline or below standard values.[7] Biphasic anaphylaxis is the recurrence of symptoms within 1–72 hours with no further exposure to the allergen.[3] Reports of incidence vary, with some studies claiming as many as 20% of cases.[24] The recurrence typically occurs within 8 hours.[10] It is managed in the same manner as anaphylaxis.[5]Pseudoanaphylaxis or anaphylactoid reactions are a type of anaphylaxis that does not involve an allergic reaction but is due to direct mast cell degranulation.[10][25] Non-immune anaphylaxis is the current term use by the World Allergy Organization[25] with some recommending that the old terminology no longer be used.[10]
ANCEF INJ USES
Cefazolin is an antibiotic used to treat a wide variety of bacterial infections. It may also be used before and during certain surgeries to help prevent infection. Thismedication is known as a cephalosporin antibiotic. It works by stopping the growth of bacteria.
How to use Ancef injDepending on your specific product, this medication is given by injection into a vein or into a muscle. Use this product exactly as directed by your doctor. The dosage is based on your medical condition and response to treatment.
If you are giving this medication to yourself at home, learn all preparation and usage instructions from your health care professional. Before using, check this product visually for particles or discoloration. If either is present, do not use the liquid. Learn how to store and discard medical supplies safely.
Antibiotics work best when the amount of medicine in your body is kept at a constant level. Therefore, use this drug at evenly spaced intervals.
Continue to use this medication until the full prescribed treatment period is finished, even if symptoms disappear after a few days. Stopping the medication too early may result in a return of the infection
The antibiotic concentration within a blood clot depends on the systemic blood titer. After the clot stabilizes,.
ANCEF INJ USES
Cefazolin is an antibiotic used to treat a wide variety of bacterial infections. It may also be used before and during certain surgeries to help prevent infection. Thismedication is known as a cephalosporin antibiotic. It works by stopping the growth of bacteria.
How to use Ancef injDepending on your specific product, this medication is given by injection into a vein or into a muscle. Use this product exactly as directed by your doctor. The dosage is based on your medical condition and response to treatment.
If you are giving this medication to yourself at home, learn all preparation and usage instructions from your health care professional. Before using, check this product visually for particles or discoloration. If either is present, do not use the liquid. Learn how to store and discard medical supplies safely.
Antibiotics work best when the amount of medicine in your body is kept at a constant level. Therefore, use this drug at evenly spaced intervals.
Continue to use this medication until the full prescribed treatment period is finished, even if symptoms disappear after a few days. Stopping the medication too early may result in a return of the infection
Management of the Posterior Maxilla
With Sinus Lift: Review of Techniques
Sunitha V. Raja,
Other than the instruments used for performing theosteotomy, 3 other variations have been described.The first is the hinge osteotomy, where a hinge bony
rectangle is created in the lateral wall of the maxilla,approximating the malar buttress. This bony rectangleis then pushed inward, along with the schneiderianmembrane, to function as a new sinus floor,reinforced with graft material.8,14 The range of motionof the bone flap is limited in this case because itcan be moved inward only until the height of thehinge.However, in cases of compromised anatomy of thelateral wall of the maxilla, the use of the elevatedosteotomy is advocated. In the elevated osteotomy anuninterrupted bone cut replaces the hinge along thesuperior horizontal aspect of the quadrilateral. In thistechnique the bone and schneiderian membrane canbe elevated higher than the aperture from which theywere cut.
In cases of advanced alveolar resorption, the malarbuttress may approximate the alveolar crest. In suchcases the complete osteotomy technique can be used.A quadrilateral cut is first made; a molt curette is thenused to peel the schneiderian membrane carefullyfrom the entire surface of the bone window. Once thebone segment is removed, it is placed in saline solutionand safeguarded for subsequent repositioning.
The final variation is the crestal osteotomy, inwhich a rectangular-shaped osteotomy is prepared on
the crest of the alveolar ridge. The detached window
is then elevated apically while the sinus membrane is
simultaneously reflected. As in the hinge osteotomy
technique, the rectangular bony segment will act as
the new sinus floor. This technique can only be used
when less than 2 mm of bone is evident between the
floor of the sinus and crest of the residual ridge
Management of the Posterior Maxilla
With Sinus Lift: Review of Techniques
Sunitha V. Raja,
Other than the instruments used for performing theosteotomy, 3 other variations have been described.The first is the hinge osteotomy, where a hinge bony
rectangle is created in the lateral wall of the maxilla,approximating the malar buttress. This bony rectangleis then pushed inward, along with the schneiderianmembrane, to function as a new sinus floor,reinforced with graft material.8,14 The range of motionof the bone flap is limited in this case because itcan be moved inward only until the height of thehinge.However, in cases of compromised anatomy of thelateral wall of the maxilla, the use of the elevatedosteotomy is advocated. In the elevated osteotomy anuninterrupted bone cut replaces the hinge along thesuperior horizontal aspect of the quadrilateral. In thistechnique the bone and schneiderian membrane canbe elevated higher than the aperture from which theywere cut.
In cases of advanced alveolar resorption, the malarbuttress may approximate the alveolar crest. In suchcases the complete osteotomy technique can be used.A quadrilateral cut is first made; a molt curette is thenused to peel the schneiderian membrane carefullyfrom the entire surface of the bone window. Once thebone segment is removed, it is placed in saline solutionand safeguarded for subsequent repositioning.
The final variation is the crestal osteotomy, inwhich a rectangular-shaped osteotomy is prepared on
the crest of the alveolar ridge. The detached window
is then elevated apically while the sinus membrane is
simultaneously reflected. As in the hinge osteotomy
technique, the rectangular bony segment will act as
the new sinus floor. This technique can only be used
when less than 2 mm of bone is evident between the
floor of the sinus and crest of the residual ridge
The outline of the lateral window has been marked with a round bur
The buccal bony plate is trimmed to a paper-thin lamella with a fi ne grit round diamond bur, avoiding the perforation of the sinus membrane.
Before elevating the sinus membrane the entire buccal bone is removed to gain access to the membrane.
Two implants have been installed after fi lling the medial part of the sinus compartment.
The sinus membrane is carefully elevated using a blunt instrument. To avoid penetration, it is essential to keep contact with the underlying bone at all time during this procedure.
The sinus compartment has been fi lled with a loosely packed 1 : 1 mixture of particulate autogenous bone and a xenograft.
The lateral window has been covered with single or double layer of resorbable barrier membrane.
with light malleting, the osteotome is pushed towards the compact bone of the sinus floor
larger diameter osteotomes are used to increase the fracture area of the sinus floor
grafting material is placed through the osteotomy site if required.
The fi rst osteotome used in the implant site is a
small diameter tapered osteotome (Fig. 50-32).
With light malleting, the osteotome is pushed
towards the compact bone of the sinus fl oor (Fig.
50-31b). After reaching the sinus fl oor, the osteotome
is pushed about 1 mm further with light malleting
in order to create a “greenstick” fracture on
the compact bone of the sinus fl oor. A tapered
osteotome with small diameter is chosen to minimize
the force needed to fracture the compact
bone.
• The second tapered osteotome, with a diameter
slightly larger then the fi rst one, is used to increase
the fracture area of the sinus fl oor (Fig. 50-33). The
second osteotome is applied to the same length as
the fi rst one.
• The third osteotome used is a straight osteotome
with a diameter about 1–1.5 mm smaller than the
implant to be placed (Fig. 50-34).
After preparation of the site with PIEZOSURGERY®, the CS1 elevator is introduced, and the tube connected to a syringe containing 3 ml of physiological saline solution is then inserted in the CS1. With the sinus physiolift® protocol, it is possible to elevate the schneiderian membrane safely, controlling the pressure of the liquid by means of the attached physiolifter device.
Infection of the grafted sinus (3-7 days post-op). Can spread to the orbit or even brain so aggressive treatment- removal of graft and antibiotics
Jensen 2011 is ITI guide 6 literature review
Rough surface: plasma sprayed, acid etched and/ or sandblasted titanium or HA coated
Smooth and machined are almost the same and should be actually called turned surfaces (Misch page 602)
Int J Oral Maxillofac Implants. 2009 Nov-Dec;24(6):1113-8.
A retrospective study of the survival of smooth- and rough-surface dental implants.
Balshe AA1, Assad DA, Eckert SE, Koka S, Weaver AL.
Author information
Abstract
PURPOSE:
To compare the time-dependent cumulative survival rates of smooth- and rough-surface dental implants.
MATERIALS AND METHODS:
A retrospective chart review was conducted for two time periods: January 1, 1991, through December 31, 1996, during which smooth-surface implants were used, and January 1, 2001, through December 31, 2005, during which rough-surface implants were used. This study included all implants placed and restored in one institution during the two time frames. Data were collected relative to patient age, gender, implant diameter, implant length, and anatomic location of implants. To facilitate the comparison, implants from the first and second time periods were followed through mid-1998 and mid-2007, respectively. Associations of patient/implant characteristics with implant survival were evaluated using marginal Cox proportional hazards models (adjusted for age and gender) and summarized with hazard ratios and corresponding 95% confidence intervals.
RESULTS:
A total of 593 patients (322 women and 271 men; mean age, 51.3 +/- 18.5 years) received 2,182 smooth-surface implants between 1991 and 1996, while 905 patients (539 women and 366 men; mean age, 48.2 +/- 17.8 years) received 2,425 rough-surface implants between 2001 and 2005. At 5 years after implant placement, survival rates were 94.0% and 94.5%, respectively, for smooth- and rough-surface implants (difference not significant). Among the smooth implants, implant length <or= 10 mm and anatomic location were identified as significantly associated with implant failure. In contrast, among the rough implants, implant length <or= 10 mm and anatomic location were not identified as risk factors for implant failure.
CONCLUSIONS:
Based on this retrospective study of two groups of patients with different implant surfaces and more than 2,000 implants in each group, there was no significant difference in the survival rates of smooth- and rough-surface dental implants. Anatomic location and implant length <or= 10 mm were associated with failures of the smooth-surface implants only.
Jensen 2011 is ITI guide 6 literature review
Rough surface: plasma sprayed, acid etched and/ or sandblasted titanium or HA coated
In staged
mean healing time between grafting and implant placement 6.0 months
mean healing time between implant placement and loading 6.3 months
In staged
mean healing time between grafting and implant placement 6.0 months
mean healing time between implant placement and loading 6.3 months
In staged
mean healing time between grafting and implant placement 6.0 months
mean healing time between implant placement and loading 6.3 months
In staged
mean healing time between grafting and implant placement 6.0 months
mean healing time between implant placement and loading 6.3 months
42- 60 months of loading for the last two sentences
Autogenous bone grafts were considered the gold standard – Pjetursson et al, systematic review of lateral approach j clin perio 2008
Autogenous bone grafts were considered the gold standard – Pjetursson et al, systematic review of lateral approach j clin perio 2008