## 1 Introduction  
The use of dental ceramics is steadily increasing in clinical dentistry, with the introduction of new products and bonding methods. Ceramics are broadly classified based on their glass content into bonded and non-bonded categories. The two main types are oxide ceramics and glass ceramics. Oxide ceramics, containing less than 15% silica with little or no glass phase, are acid-resistant and considered non-susceptible to bonding [1]. On the other hand, glass ceramics are silica-based, making them acid-sensitive and capable of achieving high adhesion strength [2]. Lithium disilicate, which contains 60 wt% silica, falls under the category of bonded ceramics [2]. Adhesive bonding of ceramic restorations with a resin cement is essential for reinforcement and support, especially without a core or framework [3]. Various studies have demonstrated that resin bonding significantly enhances the fracture resistance of ceramics [4]. This capability is closely related to the resin's elastic modulus and thickness [5]. Resin cement interacts with the defects on the ceramic surface, minimizing any flaws, while polymerization shrinkage creates compressive stresses [4]. Since ceramic materialsinherently have brittleness and limited flexural strength, resin cementation is necessary to enhance their fracture toughness [1; 6; 7] and biaxial flexural strength [1; 8]. The key to the clinical success of ceramic restorations lies in the bonding protocol used. During masticatory function, shear stresses can impact the bond strength between restorations and tooth structure. It is widely accepted that alterations in the surface treatment of ceramics affect bond strength. Several studies have explored methods to optimize the bonding protocol for ceramic restorations [9; 10; 11]. The most common protocol for surface treatment in glass ceramics involves etching with hydrofluoric acid, followed by the application of a silane coupling agent [9; 10; 11]. Some studies also suggest sandblasting followed by tribochemical silica coating or laser etching [12; 13]. Oxide ceramics cannot be conditioned through acid etching; their surface can be treated with airborne-particle abrasion or tribochemical silica coating, followed by silanization or 10-MDP (10-methacryloyloxydecyl dihydrogen phosphate) application [2]. Additionally, they can be cemented using various agents such as conventional water-based luting agents like ionomer and zinc phosphate cements, hybrid cements like resin-modified glass-ionomer cements, conventional resin cements, and self-adhesive luting agents [2]. Glass ceramics can be cemented using resin luting cements, which can be light-cured, chemically cured, or dual-cured. Photo-polymerized resin cements offer advantages and higher bond strength compared to dual-polymerized cements, with dual-cured cements being preferable over chemically cured ones [1; 9]. Preheated restorative resin composite with high filler content can also be used for glass ceramic cementation [9]. Monobond Etch & Prime is a recently introduced material for ceramic surface treatment. It serves as a self-etching ceramic primer, containing a water/alcohol solution of tetrabutyl ammonium dihydrogen trifluoride as the etching agent, along with a methacrylate phosphate monomer and a methacrylate functionalized silane as silane components [14]. Additionally, it includes bipodal bis-triethoxysilyl ethane, which simplifies the bonding protocol, requiring fewer steps. Its application creates a smoother ceramic surface with fewer irregularities compared to 9% hydrofluoric acid, and it forms a thin silane layer that chemically bonds to resin [15]. Monobond Etch & Prime is considered a viable alternative, producing bond strengths comparable to conventional hydrofluoric acid treatment [15; 16]. However, it necessitates additional silane application [16]. Some studies argue that hydrofluoric acid induces more significant alterations on the ceramic surface, resulting in higher bond strength [15]. According to [PERSON] et al.