This case highlights the removal of three large cysts, with apicoectomy and filling of the defect.

The patient returned for an unscrewing of the crown of #37 (18), which induced an occlusal trauma. This ultimately led to peri-implantitis trauma.

After performing the intra-oral evaluation/complementary exams, it was understood that the remaining teeth and root had no resistance for a new bridge, and the root of tooth #21 (9) was already quite fragile and destroyed. It was also found that the bone area of ​​teeth #11 (8) and #22 (10) had great horizontal bone loss and lack of keratinized soft tissue. It was decided to undergo treatment in several surgeries.

Implant placement in maxillary. The remaining teeth of the mandible are extracted, followed by ridge preservation and immediate implant placement.

This video shows cyst removal and apicoectomy with MTA. The defect was filled with Bond Apatite and the sutures are covered with a wound dressing.

A large periapical lesion involving teeth #22 (10) and #23 (11). Cyst enucleation and apicoectomy were performed. Two year post-op photos show the entire defect filled with true bone.

The patient presented with swelling and pain in the apical area of ​​teeth #21 (9) and #22 (10). Additional exams confirmed an apical lesion in both teeth.

he patient came with a cyst in the upper, right maxilla. The cyst was removed and apicoectomy performed. The defect was filled using Augma Bond Apatite and a wound dressing was placed to help protect the sutures from the oral environment.

The patient presents with a fistula on apical part of tooth #22 (10). The patient complained of pain in the area. The radiographic examination showed an apical lesion on the apex of #21 (9) & #22 (10).

Healthy male, 47 years old. The inflammatory changes (radicular cyst) are not involved after 3 months post re-endodontic treatment using microscopy. He has pain and discomfort from time to time. We have done a root resection of tooth #36 (19) with backfill of the root canal with the MTA, cyst enucleation (confirmed with histopathology examination). We filled the bone defect with Bond Apatite® (1/2 cc).

The patient came for implants in the right and left central incisors. Upon opening a defect was discovered. Implants were placed and augmentation was done with Bond Apatite®

A 60 years old. Came in to consult for implant treatment from tooth #23 (11) to #27 (15). Scans showed a large bone deficiency in close proximity to the sinus floor.

30 year old patient presents with pain from an infection in tooth #11 (8) and the decay of tooth #21 (9) beneath the crown.

The treatment will be done in stages. First, the failing central incisors will be extracted. The narrow ridge in the area of the lateral augmentation will be prepared with decortication and augmentation done using Bond Apatite.

The patient had no maxillary teeth and very few teeth left in the mandible. The patient also had a large periodontal lesion on tooth #48 (32). The patient had a very difficult time chewing, and she wanted to laugh freely for the first time in many years and increase her self-esteem.

The patient came with highly pneumatic maxillary sinuses. The treatment plan consists of a bilateral open sinus lift and bone expansion of the residual border (2 mm) with osteotomes.

This video shows extractions, immediate placement and augmentation with bone cements.

In this video see the extraction of the upper, left incisor with immediate implant placement and grafting with Bond Apatite.

Extraction and cyst enucleation in the upper incisors. Socket preservation and the filling of the defect are completed with Bond Apatite.

A long term case, five years after augmenting with Bond Apatite. The grafting procedure was performed in the aesthetic zone, where a buccal plate was missing. The patient had poor periodontal condition, and came in for a consultation. They complained of significant mobility of tooth #21 (9), with inflammation.

A revision of the lower right molar was made, the tumor was removed (highly mineralized part similar to osteoma and granulation tissue from area around). We made a root resections of tooth #46 (30) with retrograde filling of the root canals using MTA. We filled the bone defect with Bond Apatite (1 cc). Histopathological study showed the presence of a odontogenic fibroma structure in granulation tissue and osteoma in mineralized part. We observed a good healing of bone and soft tissue in 2 years months follow-up.

This case shows us the evolution of the sinus floor, one year after an intra crestal sinus lift through the crestal direction. The patient is a diabetic woman in her 60's, who came for an implant treatment in the upper, right jaw. She had several years with an edentulous space between #14 (5) - #16 (3).

Video of Dr. Baranes performing an intra-crestal (closed) sinus lift with immediate implant placement.

Patient : Male, 60 year old, non-smoker. The extractions of #13 (25) and #14 (26) were realized 5 months before, including bone preservation with Augma Bond Apatite®. The option of a closed sinus lift was preferred to a lateral approach because of the flexibility of the sinus floor due to the bone preservation.

A patient came for implant placement in #14 (5) and #16 (3). An implant in # 14 (5) can be placed easily, but a sinus lift must be performed in #15 (4) and #16 (3). It was decided to avoid a lateral window approach and to perform an intra crestal sinus lift.

A patient in her fifties came for implant treatment in the left maxilla. Dr. Baranes decided to place an implant, 3.75/10 in tooth #24 (12). In #26 (14) bone width was only 1mm, so a crestal sinus floor elevation was completed first to increase the bone height. Three months post-op an implant of 3.75/10 was placed. No additional augmentation was performed as 6 mm of bone was gained.

The patient presented with vertical movement of the 1st quadrant bridge, difficulties in chewing and extreme tooth wear and nerve exposure. Treatment planning involved the extraction of all mandible and maxillary teeth, the placement of 5 implants on the mandible with immediate load. A bilateral sinus lift will be done with maxillary implants planned for 6 months post-op.

The surgical plan included the total extraction of upper and lower teeth. Five implants are placed in the lower jaw with immediate load. The correction of bone defects in the maxilla and mandible. Bilateral superior sinus lift and an All on 6 with immediate loading 6 months after bone reconstruction.

The patient presented with a cracked left maxillary lateral incisor. Treatment includes extraction, grafting and immediate implant.

The patient is 67 years old and was referred for the treatment of a fractured tooth with radiolucency. In this case there was no buccal plate and no incisions were made. Due to the lack of buccal plate, the choice was made to use Bond Apatite.

In this case there was a vertical fracture and a fistula. Extraction and immediate implant with 3D Bond.

We did an endodontic treatment of #14 (5) and a surgery. The radicular cyst was removed (with histopathology), root resection of teeth #14 (5) and #15 (4) with retrograde MTA filling. We filled the bone defect with Bond Apatite® (1 cc).

Tooth #45 (29) & #46 (30) were extracted. Tooth #44 (28) is going through an endodontic retreatment procedure.  At the time of extraction, enucleation of a cystic lesion 1 cm in diameter.

We made a root resection of tooth #35 (20) with back-fill with the MTA, cyst enucleation (confirmed with histopathology examination). We filled the bone defect with Bond Apatite (1/2 cc). Good healing and no clinical symptoms after six months was observed.

The cyst appeared 8 months after good endodontic treatment. We did a root resection of tooth #22 (10), followed by a cyst enucleation with histopathology examination. The bone defect was then filled with Bond Apatite (2cc).

A 20 year old was referred to us to perform an implant in area #22 (10) due to agenesis (after orthodontic preparation.) The doctor wants to perform a screwed crown. This requires us to perform the implant outside the frame of the bone. We will treat the dehiscence with Bond Apatite.

The conservative endodontic treatment of the tooth #26 (14) failed. We made a root resection of this buccal mesial root of tooth #26 (14,) backfilling with MTA and cyst enucleation with histopathology examination. We filled the bone defect with Bond Apatite®.

The root of #35 (20) was resected, with a backfill of the root canal with MTA. Cyst enucleation was confirmed with histopathology examination. The bone defect was filled with Bond Apatite® (0.5 cc).

The lower right first molar was atraumatically extracted without any lingual or buccal flap. Immediate implant was placed with >50 N/Cm torque.

Unerupted tooth #13 (6) was preserved and deciduous #53 (C) was extracted. GBR with Bond Apatite® was done. An implant was placed 4 months post-op, during which time a temporary tooth was connected with braces.

In this video the second premolar is extracted and 3D Bond is used to repair a sinus communication. Socket grafting is completed with Bond Apatite, and the graft is protected with a collagen plug.

Healthy 44 year old female presents with constant, moderate pain on endodontically treated tooth #30 (46). Three months following endo re-treatment of MB and ML canals, the pain persisted.

Extraction and Bone Regeneration with Biphasic Calcium Sulfate. 5 month post-op follow up with implant placement with sinus lift augmentation.

In bone of poor quality, increasing implant diameter may be the only way to increase tolerance to occlusal forces, improve initial stability, and provide a favorable stress distribution to the surrounding bone. Shorter implants, those with locking tapers and plateau root shapes, tend to have longer survival times by using Biphasic Calcium Sulfate.

The patient presented with an infected and fractured molar with compromised buccal plate. The extraction was done in segments. Osteotomy prep grafted with Bond Apatite®, uncover osteotomy, immediate implant placement.  Note the keratinized gingiva around the healed implant. The key here was no flap at the time of the extraction.

The patient presented with a large area of inflammation around the tooth #12 (7) with a complete lesion of external cortical lamina. We extracted the tooth and removed the inflammation (with histopathology examination). We filled the bone defect with Bond Apatite® (1 cc). After 4 months we have a new young bone in the position of #12 (7), so the implant was placed with good primary stability of the implant.

The lower left canine is both infected and fractured. Medial perio defect. Grafting was with autogenous bone and Augma Bond Apatite®.

treatment of #37 (18) and extraction of #36 (19) due to deep periodontal pocket with active secretion and furcation involvement. The tooth was extracted atraumatically, and an implant was placed centrally, relying on the septum.

The patient is a woman in her 50’s, who came a day before a family event for a fixed prothetelic supported by immediate implant placement. Canine in a classic vestibular position, it will be necessary to try to keep the buccal bone wall as much as possible and reconstruct the ridge.

An 81-year-old woman came to the consultation with complaints of mandibular pain, difficulty in chewing, bad taste and bad breath. The patient had an old mandibular treatment with infected implants with suppuration. The remaining teeth were also in very poor condition. It was decided to extract all teeth and mandibular implants, with placement of 4 immediate implants with immediate loading and mandibular bone reconstruction. Four months later the definitive hybrid prosthesis would be made.

Failing first molar, immediate extraction and implant placement. Flap stretch to achieve primary closure. Graft with Bond Apatite.

The patient presented with a failed bridge, and has a history of IV bisphosphonate and extractions were completed without flaps. Socket grafting and immediate implants were placed, and the socket opening were covered with a collagen sponge to protect the graft material and minimize chance of bone exposure.

The patient is a healthy female, 59 years old. The root of tooth #13 (6) broke without any reason. Prosthetic restoration was not possible.  The patient feels pain and discomfort. Root #13 (6) was extracted with flap opening. After that we saw partial damage of the external cortical lamina, about 5 millimeters. Immediate implant placement is performed, and the bone defect is filled with Bond Apatite® (1 cc). A full restoration of the external lamina was observed clinically 3.5 months post-op. Final prosthetic restoration was done in next 3 weeks. 12 month post-op follow-up no inflammatory symptoms were observed.

Extraction and grafting of lower left and right molars, followed months later by open sinus lift and immediate implant.

The patient presents with a symptomatic cyst with an active fistula on the area of #21 (9) & #22 (10) and an absence of tooth #24 (12) with major bone loss. The patient wants to have fixed teeth on #22 (10) and #24 (12).

The patient presents with an absence of tooth #24 (12), with a loss of bone thickness. Augmentation is done with immediate implant placement.

e patient was an 18 year old presenting with congenital malformation of #12 (7) & #22 (10). The patient came after opening spaces with orthodontic treatment.

The patient presented with a crown fracture on the tooth #24 (12). The tooth was extracted and socket grafting was completed with Bond Apatite. A temporary crown was used during healing.

A 43-year-old woman came for consultation 3 days after losing tooth #11 (8) due to trauma. The patient has a history of periodontitis and tooth mobility, and she brought her tooth with her in her hand. The patient just wanted to have her tooth back. The patient is a smoker. Tooth #13 (6) had already been replaced with an implant for the same reason about 10 years ago.

The patient presents a total failure of an old bridge between teeth #21 (9) and #23 (11) with high horizontal/vertical mobility and marked absorption of the buccal bone plate in the area of tooth #23 (11) with active infection.

The patient is a 56 year old female, healthy & nonsmoking. Presented with a mobile bridge in her upper front left region. The distal abutment of the bridge was a broken root with caries, swelling and discharge. Tooth #26 (14) was extracted years prior. The bridge is not aesthetic enough regarding teeth #21 (9) and #22 (10), and not in proper occlusion. Periapical lesion in tooth #22 (10) and PDL widening. The treatment plan started with cutting the bridge distal to #22 (10), extracting root #25 (13) and placing three tilted implants with immediate loading, preserving all the neighboring teeth.

A healthy 36 year old woman comes to the clinic with pain and swelling in the area of ​​the inferior left molars. In the intraoral observation, a vestibular fistula was identified, and the complementary exams confirmed a bone lesion caused by a root perforation (poorly executed false post) on the first lower left molar #36 (19). It was decided to do antibiotic therapy for a week and then the tooth extraction with immediate implant placement and bone graft. 4 months post-op the definitive zirconia/ceramic crown would be was made.

Extraction of tooth 36 (19) with immediate implant placement and augmentation. Placement of zirconia/ceramic crown 4 months later.

The patient was referred for an implant after the extraction of tooth #12 (7). According to the CBCT, their was insufficient bone volume due to a bone defect and a residual cyst.

The patient was a young male, after failure of crown on tooth #11 (8).

In this video a closed sinus lift is completed with immediate implant placement using Bond Apatite.

In this video a closed sinus lift is completed with immediate implant placement using Bond Apatite.

a case of severe bone loss around failed implants, that served for about 15 years and were recently grouped together with a metal bar in order to support an upper denture. The entire frame was held by implant #16 (3), the other implants were in soft tissue only, the remaining bone was severely atrophied.

(15). In order to avoid lateral sinus lift procedure, the ridge was first reconstructed. Three months later, a minimally invasive intra-crestal sinus lift approach with immediate implant placement was performed.

The patient came to our office complaining of mobility and discomfort of teeth 8,9 (11,21). The clinical and radiographic evaluation confirmed the patient’s complaint. The CBCT demonstrates a large bone deficiency at the apical level with the absence of the buccal plate.

A large cyst is removed from the aesthetic zone, and the gap is filled with Bond Apatite.

We did an enucleation and resection of roots of the upper right incisors, (#11 (8) & #12 (7)) with retrograde fillings (MTA) and augmentation with Bond Apatite® bone cement. Healing was uneventfully and after six months post op the place was asymptomatic and bone was formed.

Male age 40, cyst in the front of the mandible, range of root #31(24) and #32(23). There was pain, swelling and active buccal fistula. Enucleation of the cyst and resection with retrograde and filling (MTA) of roots #31(24) and #32(23). Augmentation was

An 82 year old woman presented with swelling and pain on the left side of the cheek and lip, and Vincent symptom. The cyst was removed, and the defect filled with Bond Apatite. Follow up showed very good bone remodeling, and no inflammatory symptoms were observed.

The patient reported inflammation, swelling and pain on occasion consistent with Vincent’s symptom in the area of teeth #36 (19), #20 (35), and #34 (21). The surgery was performed under general anesthesia. We removed a radicular cyst (with histopathology), root resection of #35 (20) with retrograde MTA filling, and extraction of #36 (19). The bone defect was grafted with Bond Apatite® (6 cc).

The molar is extracted and socket grafting and lateral ridge augmentation are completed with Bond Apatite. Implants are placed 5 months post-op.

Patient in her sixties come for implant treatment in the maxilla on the right side. The ridge was very thin, about 2 mm. A lateral augmentation to thicken the ridge with Bond Apatite was performed. The implant in tooth #13 (6) is of 3 mm in diameter, the other implants #14 (5), #15 (4) and #17 (2) are of 3.75 mm in diameter.

The patient is a 70 year old female with no health problems. Tooth #34 (21) is fractured and must be extracted, and the bridge sliced. Tooth #38 (17) will be kept for the moment.

The right lateral incisor was broken during a meal. There is a false post, difficult to remove, inside the root canal and there seems to be a cyst at the apex. The right lateral incisor was broken during a meal. There is a false post, difficult to remove, inside the root canal and there seems to be a cyst at the apex. The crown was made of resin. Trying to do a crown on the root seems less predictable than to do an immediate implant. The patient as done other implants with great success and she prefers the implant solution.              

The patient is a female, 60 year old, non-smoker. She presented with loss of the lateral plate following an infection on root fracture #25 (13). Implant placement occurs 5 months after bone preservation with Augma Bond Apatite®.

Examination reveals a narrow alveolar crest that will not accommodate implant placements in the molar area. It was decided to perform a ridge augmentation initially, and after a few months of healing to proceed with placement of the implants.

In this live surgery video we see multiple extractions and augmentation in order to prevent bone loss and maintain healthy bone. This case demonstrates the importance of augmentation procedures for preventing bone loss and maintaining healthy bone, regardless of the

Congenitally missing maxillary lateral incisors, and deficient buccal width of alveolar bone in edentulous areas. Simultaneous graft and implant placement.

The patient presented with difficulties chewing and a poor aesthetic. They had 6 remaining teeth in the mandible and wanted a fixed prosthesis. The treatment plan included multiple extractions and 4 implants with immediate load and ridge preservation.

Upon extraction of the first molar a missing buccal plate is observed. Grafting is completed with Bond Apatite and the implant is placed 4 months post-op.

This video demonstrates the need to preserve available bone when extracting teeth in preparation for implants.

The patient wants to be able to eat and laugh for the first time in many years, and to raise her self-esteem. She also wants to stop using the old, unsightly and uncomfortable removable prostheses.

The patient came with aesthetical problems, difficulty with chewing and failure of most of his remaining teeth. The treatment plan involved complete maxillary teeth extraction, 7 immediate implants, bone grafting with bone cements and immediate load.

The patient presented with difficulties in chewing and problems with self esteem. She no longer wanted to use a removable prosthesis and had severe maxillar atrophy.

Multiple extractions, cyst removal and the reconstruction of maxillary bone defects. Rehabilitation with a temporary removable prosthesis, and 6 months post-op the final skeletal prosthesis is placed.

62 year old male presents with painful and mobile upper left first premolar tooth. Exam revealed gingival inflammation and mobility. Exploration revealed a missing buccal plate. The plan was to remove the tooth, and graft with Bond Apatite, without flap elevation.

A patient came to the office complaining of the mobility of the old bridges, located in the anterior maxillary segment. With Bond Apatite we were able to fill gaps and large defects. Including the void left after removing the impacted canine. This was done while the site was chronically infected.

This video shows the protocols for an Open (lateral window) Sinus Lift with immediate implants, as well as extractions and dehiscence.

The patient is a 65 year old female, who came in for implants. We decided to perform an open sinus lift using a lateral window, which we will fill with Bond Apatite.

Periapical lesion and root resorption are demonstrated around the tooth #23 (#11). The tooth underwent repeated root canal treatment by endodontist and courses of antibiotics without improvements.

This is a case of socket shield for the right central incisor. The left central incisors was placed 8 years prior with full extraction. One can tell the difference with bone and soft tissue architecture between the two.

The patient is a healthy, 50 year old male. They presented with a cyst and fistula on the mandible, 2nd left premolar. There was large bone loss which included most of the buccal plate. The patient complained of pain and swelling.

nt is a 72 year old female smoker with poor hygiene,. The treatment plan includes a complete denture in the upper jaw, as well as a complete denture in the lower jaw stabilized by two anterior implants. A provisional denture will be placed in the upper and lower jaw during the healing process.

healthy patient. He came to consult for pain on #11 (8). The x-ray did not provide any convincing but the clinical examination made us think of a root fracture. I performed a large full thickness flap and realized a bone filling with biphasic calcium sulfate (Augma Bond Apatite), hoping to limit the loss of width following a traumatic extraction. A collagen sponge was used to cover the graft.

The crown on #46 (#30) was 6 months old, and was still painful despite weeks of antibiotics. Our decision was to extract the tooth and to graft biphasic calcium sulfate (Augma Bond Apatite®) in order to recover as much bone volume as possible. After 6 months, and a complete restitution of the bone volume, an implant (Surcam, S-type, 5x 13) was placed in a true bone.

In this video Bond Apatite is used to fill a defect in the area of the lower, right incisor with a missing buccal plate. Four months post-op an implant is placed in new bone.

In this video see the implant placement in the area of the maxillary incisors, and lateral augmentation using the tunneling technique.

Extraction of hopeless premolars #24 (12) & #25 (13). The treatment plan included extraction and socket grafting, and the placement of two implants during a second stage. A closed sinus lift was performed using Bond Apatite® with the distal implant placement.

A bridge in the lower left molars and premolars is replaced with 4 implants. During the uncovery Biphasic Calcium Sulfate is used to aid in soft tissue growth.

Ridge reconstruction of the mandible with immediate implants.

Extractions and ridge reconstruction of the maxilla with immediate implant placement.

Intra oral images showing failed bridge in an otherwise healthy 60 year old male. Referred to the surgeon due to recurrent inflammation and discomfort in the upper right maxilla. Periimplantitis signs are evident.

In this video an implant is placed in the area of the right, lower premolar. Lateral augmentation with bone cements takes place simultaneously.

Bone cements are used to repair a large, buccal dehiscence, and a wound dressing is placed over the sutures to help protect the wound and aid in the healing process.

Socket grafting of #48 (32) with Augma Bond Apatite® (x 3) following the root treatment of #47 (31) is realized.

The patient is a healthy, 67 year old female who presented with a root fracture of tooth #13 (6). The patient complained of dissatisfaction with the color of the tooth, and the inability to chew due to pain and discomfort.

Patient is a 74 year old male, healthy non smoker. Tooth #26 (14) was under follow up after rehabilitation that took place more than 20 years ago, with another clinic. Recently the patient experienced pain and swelling, as well as discharge. Due to the infection and periapical lesions detected we decided to extract.

This video shows a full arch rehabilitation with bilateral open sinus lift.

The patient presented with a lack of teeth for chewing in the 2nd quadrant, a destroyed tooth #24 (12) with an apical cyst, and a lack of aesthetics when they smiled.

This is a sinus lift with two windows due to a partial septum. Bond Apatite® was used in the sinus lift, and was placed directly into the chamber.

In this case Bond Apatite is used for socket grafting after extraction, and lateral augmentation. The socket is covered with the Augma Shield to protect the material during the initial healing stage.

Discomfort and tooth mobility of the left upper lateral incisor. A fistula was detached buccally near the apex zone of the tooth. Radiographic imagery revealed a large radiolucency in connection with the tooth apex. The tooth was extracted and the lesion removed, followed by augmentation with Bond Apatite.

The patient is a 70 year old male with a bridge from #45 (29) - #47 (31) that is mobile and causing pain.

presented with diffuse palatal swelling and mild pain in the upper left first molar. The tooth was sectioned and removed without any palatal or buccal flap. Augma was placed with sutures and a collagen plug.

Diagnosis: Granuloma and bone re absorption in septum and palatal root.

The first molar #30 (46) was extracted and augmentation was done with Augma Bond Apatite®. Re-entry for implant placement was 3 months post-op. Radiographic evaluation was done 3 and 6 months post-op. Follow up after 4 years of clinical function illustrates the stability of the bone level, and the process of bone remodeling and maturation.

Dr. Stéphane Berg discusses changing dogmas and the evolution of dentistry, first for himself and then for others. His way of confronting dogmas, through the dissonance between periodontology and implantology and later while adopting new bone grafting principles, allowed him to become an expert in his field.

Removal of the old bridge over implants #45 (29)/#47 (31), flap opening, removal of granulation tissue, cleaning and disinfection of the implant surface. The extraction of #44 (28) with immediate implant and immediate load followed by the placement of the old bridge sterilized in the autoclave during the surgery time. 4 months post-op, a final crown will be made on the new implant #44 (28).

The patient is a 62 year old male with advanced periodontal disease, mobility grade II, missing teeth and compromised function and esthetic. Augmentation and immediate placement of trefoil implants.

The patient is a 50 year old male with periodontitis and mandibular teeth in poor condition. The patient has difficulty chewing and a poor aesthetic.

Periodontitis, Stage III, Grade C, with molar incisor pattern. They demonstrated bleeding, deep pockets and vertical bone resorption.

The patient was referred by his treating dentist following repeat acute phases. The decision to extract is done with antibiotics and corticosteroid coverage. GBR will be performed during the surgical stage, with Augma Bond Apatite.

Here we have three different cases of the extraction of wisdom teeth (3rd Molars) using Bond Apatite for socket grafting and GBR.

Teeth #21 (9), #22 (10), #23 (11), #24 (12), and #25 (13) are to be extracted at the same time. The flap will not be sufficient to cover the Bond Apatite, so a wound dressing was used to cover the exposed material.

Quad -Zygoma using Extra Maxillary Approach in conjunction to Bond Apatite®, reducing trauma and avoiding complications on Full Arch clinical cases.

The patient presented with reduced dimension of the vertical bone after using a removable prosthesis for 20 years. The treatment plan included 2 retro-molar implants, 2 zygomatic implants and 4 conventional implants.